520723842 has 32 divisors (see below), whose sum is σ = 1097349120. Its totient is φ = 164275920.

The previous prime is 520723831. The next prime is 520723867. The reversal of 520723842 is 248327025.

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, 170743 + ... + 173765.

It is an arithmetic number, because the mean of its divisors is an integer number (34292160).

Almost surely, 2^520723842 is an apocalyptic number.

520723842 is an abundant number, since it is smaller than the sum of its proper divisors (576625278).

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

520723842 is a wasteful number, since it uses less digits than its factorization.

520723842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 520723842 is about 22819.3742683712. The cubic root of 520723842 is about 804.5181031027.

The spelling of 520723842 in words is "five hundred twenty million, seven hundred twenty-three thousand, eight hundred forty-two".