520431922 has 8 divisors (see below), whose sum is σ = 784348272. Its totient is φ = 258982500.

The previous prime is 520431913. The next prime is 520431943. The reversal of 520431922 is 229134025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×520431922² = 541698770873228168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616204 + ... + 617047.

It is an arithmetic number, because the mean of its divisors is an integer number (98043534).

Almost surely, 2^520431922 is an apocalyptic number.

520431922 is a deficient number, since it is larger than the sum of its proper divisors (263916350).

520431922 is a wasteful number, since it uses less digits than its factorization.

520431922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233464.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 520431922 is about 22812.9770525462. The cubic root of 520431922 is about 804.3677362440.

Adding to 520431922 its reverse (229134025), we get a palindrome (749565947).

The spelling of 520431922 in words is "five hundred twenty million, four hundred thirty-one thousand, nine hundred twenty-two".