520342272 has 144 divisors (see below), whose sum is σ = 1558999680. Its totient is φ = 171168768.

The previous prime is 520342267. The next prime is 520342283. The reversal of 520342272 is 272243025.

520342272 is a `hidden beast` number, since 52 + 0 + 342 + 272 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 573243 + ... + 574149.

Almost surely, 2^520342272 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 520342272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (779499840).

520342272 is an abundant number, since it is smaller than the sum of its proper divisors (1038657408).

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

520342272 is an equidigital number, since it uses as much as digits as its factorization.

520342272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 520342272 is about 22811.0120775033. The cubic root of 520342272 is about 804.3215465916.

Adding to 520342272 its reverse (272243025), we get a palindrome (792585297).

The spelling of 520342272 in words is "five hundred twenty million, three hundred forty-two thousand, two hundred seventy-two".