564326280 has 96 divisors (see below), whose sum is σ = 2096078400. Its totient is φ = 128988288.

The previous prime is 564326261. The next prime is 564326291. The reversal of 564326280 is 82623465.

564326280 is a `hidden beast` number, since 5 + 643 + 2 + 6 + 2 + 8 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 109450 + ... + 114489.

It is an arithmetic number, because the mean of its divisors is an integer number (21834150).

Almost surely, 2^564326280 is an apocalyptic number.

It is an amenable number.

564326280 is an abundant number, since it is smaller than the sum of its proper divisors (1531752120).

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

564326280 is a wasteful number, since it uses less digits than its factorization.

564326280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223963 (or 223956 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 564326280 is about 23755.5526140732. The cubic root of 564326280 is about 826.3742165601.

The spelling of 564326280 in words is "five hundred sixty-four million, three hundred twenty-six thousand, two hundred eighty".