610400564 has 12 divisors (see below), whose sum is σ = 1072004388. Its totient is φ = 304113600.

The previous prime is 610400551. The next prime is 610400573. The reversal of 610400564 is 465004016.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 243984400 + 366416164 = 15620^2 + 19142^2 .

It is a congruent number.

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, 270407 + ... + 272654.

It is an arithmetic number, because the mean of its divisors is an integer number (89333699).

Almost surely, 2^610400564 is an apocalyptic number.

It is an amenable number.

610400564 is a deficient number, since it is larger than the sum of its proper divisors (461603824).

610400564 is a wasteful number, since it uses less digits than its factorization.

610400564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543346 (or 543344 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 610400564 is about 24706.2859207935. The cubic root of 610400564 is about 848.2782050431.

The spelling of 610400564 in words is "six hundred ten million, four hundred thousand, five hundred sixty-four".