Number of the day: 540484

Properties of the number 540484:

540484 = 2² × 7 × 97 × 199 is the 495875^th composite number and is not squarefree.
540484 has 4 distinct prime factors, 24 divisors, 11 antidivisors and 228096 totatives.
540484 has a semiprime digit sum 25 in base 10.
Reversing the decimal digits of 540484 results in a sphenic number.
540484 = 135122² - 135120² = 19310² - 19296² = 1490² - 1296² = 878² - 480² is the difference of 2 nonnegative squares in 4 ways.
540484 is the difference of 2 positive pentagonal numbers in 4 ways.
540484 = 72² + 130² + 720² is the sum of 3 positive squares.
540484² = 362180² + 401184² is the sum of 2 positive squares in 1 way.
540484² is the sum of 3 positive squares.
540484 is a proper divisor of 491¹² - 1.