520934428 has 24 divisors (see below), whose sum is σ = 1042358912. Its totient is φ = 223152624.

The previous prime is 520934377. The next prime is 520934431. The reversal of 520934428 is 824439025.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99451 + ... + 104557.

Almost surely, 2^520934428 is an apocalyptic number.

It is an amenable number.

520934428 is an abundant number, since it is smaller than the sum of its proper divisors (521424484).

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

520934428 is a wasteful number, since it uses less digits than its factorization.

520934428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8761 (or 8759 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 520934428 is about 22823.9879950897. The cubic root of 520934428 is about 804.6265402450.

The spelling of 520934428 in words is "five hundred twenty million, nine hundred thirty-four thousand, four hundred twenty-eight".