520794628 has 12 divisors (see below), whose sum is σ = 933619932. Its totient is φ = 254046080.

The previous prime is 520794611. The next prime is 520794641. The reversal of 520794628 is 826497025.

It can be written as a sum of positive squares in 2 ways, for example, as 185831424 + 334963204 = 13632^2 + 18302^2 .

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, 1587625 + ... + 1587952.

It is an arithmetic number, because the mean of its divisors is an integer number (77801661).

Almost surely, 2^520794628 is an apocalyptic number.

It is an amenable number.

520794628 is a deficient number, since it is larger than the sum of its proper divisors (412825304).

520794628 is a wasteful number, since it uses less digits than its factorization.

520794628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175622 (or 3175620 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 520794628 is about 22820.9252222604. The cubic root of 520794628 is about 804.5545562305.

The spelling of 520794628 in words is "five hundred twenty million, seven hundred ninety-four thousand, six hundred twenty-eight".