564225940 has 24 divisors (see below), whose sum is σ = 1188190080. Its totient is φ = 225058848.

The previous prime is 564225911. The next prime is 564225973. The reversal of 564225940 is 49522465.

It is a super-2 number, since 2×564225940² = 636701822737767200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 564225940.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 32112 + ... + 46471.

It is an arithmetic number, because the mean of its divisors is an integer number (49507920).

Almost surely, 2^564225940 is an apocalyptic number.

It is an amenable number.

564225940 is an abundant number, since it is smaller than the sum of its proper divisors (623964140).

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

564225940 is a wasteful number, since it uses less digits than its factorization.

564225940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78951 (or 78949 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 564225940 is about 23753.4405928910. The cubic root of 564225940 is about 826.3252358512.

The spelling of 564225940 in words is "five hundred sixty-four million, two hundred twenty-five thousand, nine hundred forty".