520634004 has 48 divisors (see below), whose sum is σ = 1328456640. Its totient is φ = 157386240.

The previous prime is 520633969. The next prime is 520634021. The reversal of 520634004 is 400436025.

It is a super-2 number, since 2×520634004² = 542119532242144032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52602 + ... + 61710.

It is an arithmetic number, because the mean of its divisors is an integer number (27676180).

Almost surely, 2^520634004 is an apocalyptic number.

It is an amenable number.

520634004 is an abundant number, since it is smaller than the sum of its proper divisors (807822636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520634004 is a wasteful number, since it uses less digits than its factorization.

520634004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560 (or 9558 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 520634004 is about 22817.4057245779. The cubic root of 520634004 is about 804.4718338852.

The spelling of 520634004 in words is "five hundred twenty million, six hundred thirty-four thousand, four".