564903980 has 12 divisors (see below), whose sum is σ = 1186298400. Its totient is φ = 225961584.

The previous prime is 564903973. The next prime is 564904013. The reversal of 564903980 is 89309465.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14122580 + ... + 14122619.

It is an arithmetic number, because the mean of its divisors is an integer number (98858200).

Almost surely, 2^564903980 is an apocalyptic number.

It is an amenable number.

564903980 is an abundant number, since it is smaller than the sum of its proper divisors (621394420).

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

564903980 is a wasteful number, since it uses less digits than its factorization.

564903980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28245208 (or 28245206 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 564903980 is about 23767.7087663073. The cubic root of 564903980 is about 826.6561064237.

The spelling of 564903980 in words is "five hundred sixty-four million, nine hundred three thousand, nine hundred eighty".