520023004 has 12 divisors (see below), whose sum is σ = 914354728. Its totient is φ = 258778800.

The previous prime is 520022969. The next prime is 520023017. The reversal of 520023004 is 400320025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307227 + ... + 308914.

Almost surely, 2^520023004 is an apocalyptic number.

It is an amenable number.

520023004 is a deficient number, since it is larger than the sum of its proper divisors (394331724).

520023004 is a wasteful number, since it uses less digits than its factorization.

520023004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616356 (or 616354 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 520023004 is about 22804.0128924714. The cubic root of 520023004 is about 804.1570095911.

Adding to 520023004 its reverse (400320025), we get a palindrome (920343029).

The spelling of 520023004 in words is "five hundred twenty million, twenty-three thousand, four".