520918272 has 108 divisors (see below), whose sum is σ = 1716551200. Its totient is φ = 148829184.

The previous prime is 520918259. The next prime is 520918273. The reversal of 520918272 is 272819025.

It is a super-2 number, since 2×520918272² = 542711692206931968, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520918273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22 + ... + 32277.

Almost surely, 2^520918272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520918272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (858275600).

520918272 is an abundant number, since it is smaller than the sum of its proper divisors (1195632928).

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

520918272 is a wasteful number, since it uses less digits than its factorization.

520918272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32328 (or 32311 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 520918272 is about 22823.6340664672. The cubic root of 520918272 is about 804.6182220639.

The spelling of 520918272 in words is "five hundred twenty million, nine hundred eighteen thousand, two hundred seventy-two".