520440136 has 32 divisors (see below), whose sum is σ = 1024410240. Its totient is φ = 247401088.

The previous prime is 520440103. The next prime is 520440143. The reversal of 520440136 is 631044025.

It is a self number, because there is not a number n which added to its sum of digits gives 520440136.

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, 22260 + ... + 39196.

It is an arithmetic number, because the mean of its divisors is an integer number (32012820).

Almost surely, 2^520440136 is an apocalyptic number.

It is an amenable number.

520440136 is a deficient number, since it is larger than the sum of its proper divisors (503970104).

520440136 is a wasteful number, since it uses less digits than its factorization.

520440136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17133 (or 17129 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 520440136 is about 22813.1570809478. The cubic root of 520440136 is about 804.3719680122.

The spelling of 520440136 in words is "five hundred twenty million, four hundred forty thousand, one hundred thirty-six".