564321380 has 24 divisors (see below), whose sum is σ = 1354371648. Its totient is φ = 193481568.

The previous prime is 564321377. The next prime is 564321383. The reversal of 564321380 is 83123465.

It is an interprime number because it is at equal distance from previous prime (564321377) and next prime (564321383).

It is not an unprimeable number, because it can be changed into a prime (564321383) by changing a digit.

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, 2015294 + ... + 2015573.

It is an arithmetic number, because the mean of its divisors is an integer number (56432152).

Almost surely, 2^564321380 is an apocalyptic number.

It is an amenable number.

564321380 is an abundant number, since it is smaller than the sum of its proper divisors (790050268).

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

564321380 is a wasteful number, since it uses less digits than its factorization.

564321380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030883 (or 4030881 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 564321380 is about 23755.4494800667. The cubic root of 564321380 is about 826.3718247728.

The spelling of 564321380 in words is "five hundred sixty-four million, three hundred twenty-one thousand, three hundred eighty".