564649260 has 48 divisors (see below), whose sum is σ = 1806878976. Its totient is φ = 129062592.

The previous prime is 564649247. The next prime is 564649279. The reversal of 564649260 is 62946465.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 671782 + ... + 672621.

It is an arithmetic number, because the mean of its divisors is an integer number (37643312).

Almost surely, 2^564649260 is an apocalyptic number.

It is an amenable number.

564649260 is an abundant number, since it is smaller than the sum of its proper divisors (1242229716).

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

564649260 is a wasteful number, since it uses less digits than its factorization.

564649260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344422 (or 1344420 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 564649260 is about 23762.3496312970. The cubic root of 564649260 is about 826.5318389921.

The spelling of 564649260 in words is "five hundred sixty-four million, six hundred forty-nine thousand, two hundred sixty".