652137264 has 80 divisors (see below), whose sum is σ = 1899898240. Its totient is φ = 214125120.

The previous prime is 652137259. The next prime is 652137293. The reversal of 652137264 is 462731256.

652137264 is a `hidden beast` number, since 6 + 521 + 3 + 72 + 64 = 666.

It is a super-2 number, since 2×652137264² = 850566022194811392, which contains 22 as substring.

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

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, 17679 + ... + 40209.

It is an arithmetic number, because the mean of its divisors is an integer number (23748728).

Almost surely, 2^652137264 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 652137264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (949949120).

652137264 is an abundant number, since it is smaller than the sum of its proper divisors (1247760976).

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

652137264 is a wasteful number, since it uses less digits than its factorization.

652137264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22615 (or 22603 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 652137264 is about 25536.9783647165. The cubic root of 652137264 is about 867.1874931249.

The spelling of 652137264 in words is "six hundred fifty-two million, one hundred thirty-seven thousand, two hundred sixty-four".