520400076 has 48 divisors (see below), whose sum is σ = 1401496320. Its totient is φ = 147211200.

The previous prime is 520400059. The next prime is 520400081. The reversal of 520400076 is 670004025.

It is a happy 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, 22186 + ... + 39153.

It is an arithmetic number, because the mean of its divisors is an integer number (29197840).

Almost surely, 2^520400076 is an apocalyptic number.

It is an amenable number.

520400076 is an abundant number, since it is smaller than the sum of its proper divisors (881096244).

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

520400076 is a wasteful number, since it uses less digits than its factorization.

520400076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61454 (or 61452 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 520400076 is about 22812.2790619438. The cubic root of 520400076 is about 804.3513290917.

The spelling of 520400076 in words is "five hundred twenty million, four hundred thousand, seventy-six".