520442892 has 36 divisors (see below), whose sum is σ = 1317836520. Its totient is φ = 173181312.

The previous prime is 520442887. The next prime is 520442893. The reversal of 520442892 is 298244025.

520442892 is a `hidden beast` number, since 520 + 4 + 42 + 8 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (520442893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9159 + ... + 33537.

It is an arithmetic number, because the mean of its divisors is an integer number (36606570).

Almost surely, 2^520442892 is an apocalyptic number.

It is an amenable number.

520442892 is an abundant number, since it is smaller than the sum of its proper divisors (797393628).

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

520442892 is a wasteful number, since it uses less digits than its factorization.

520442892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24982 (or 24977 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 520442892 is about 22813.2174846075. The cubic root of 520442892 is about 804.3733878651.

The spelling of 520442892 in words is "five hundred twenty million, four hundred forty-two thousand, eight hundred ninety-two".