573400720 has 20 divisors (see below), whose sum is σ = 1333156860. Its totient is φ = 229360256.

The previous prime is 573400661. The next prime is 573400771. The reversal of 573400720 is 27004375.

It can be written as a sum of positive squares in 2 ways, for example, as 263218176 + 310182544 = 16224^2 + 17612^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 3583675 + ... + 3583834.

It is an arithmetic number, because the mean of its divisors is an integer number (66657843).

Almost surely, 2^573400720 is an apocalyptic number.

It is an amenable number.

573400720 is an abundant number, since it is smaller than the sum of its proper divisors (759756140).

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

573400720 is a wasteful number, since it uses less digits than its factorization.

573400720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167522 (or 7167516 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 573400720 is about 23945.7871033716. The cubic root of 573400720 is about 830.7800862603.

The spelling of 573400720 in words is "five hundred seventy-three million, four hundred thousand, seven hundred twenty".