520696398 has 16 divisors (see below), whose sum is σ = 1074986496. Its totient is φ = 167966520.

The previous prime is 520696391. The next prime is 520696447. The reversal of 520696398 is 893696025.

It is a super-2 number, since 2×520696398² = 542249477780348808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520696391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399536 + ... + 1399907.

It is an arithmetic number, because the mean of its divisors is an integer number (67186656).

Almost surely, 2^520696398 is an apocalyptic number.

520696398 is an abundant number, since it is smaller than the sum of its proper divisors (554290098).

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

520696398 is a wasteful number, since it uses less digits than its factorization.

520696398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799479.

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 520696398 is about 22818.7729293229. The cubic root of 520696398 is about 804.5039691985.

The spelling of 520696398 in words is "five hundred twenty million, six hundred ninety-six thousand, three hundred ninety-eight".