652446864 has 60 divisors (see below), whose sum is σ = 1831833276. Its totient is φ = 216781056.

The previous prime is 652446827. The next prime is 652446881. The reversal of 652446864 is 468644256.

652446864 is a `hidden beast` number, since 6 + 524 + 4 + 68 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14379264 + 638067600 = 3792^2 + 25260^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38502 + ... + 52794.

Almost surely, 2^652446864 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 652446864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915916638).

652446864 is an abundant number, since it is smaller than the sum of its proper divisors (1179386412).

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

652446864 is a wasteful number, since it uses less digits than its factorization.

652446864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14624 (or 14615 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 652446864 is about 25543.0394432613. The cubic root of 652446864 is about 867.3247028746.

The spelling of 652446864 in words is "six hundred fifty-two million, four hundred forty-six thousand, eight hundred sixty-four".