561574460 has 24 divisors (see below), whose sum is σ = 1180132800. Its totient is φ = 224472384.

The previous prime is 561574421. The next prime is 561574477. The reversal of 561574460 is 64475165.

561574460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21917 + ... + 40043.

It is an arithmetic number, because the mean of its divisors is an integer number (49172200).

Almost surely, 2^561574460 is an apocalyptic number.

It is an amenable number.

561574460 is an abundant number, since it is smaller than the sum of its proper divisors (618558340).

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

561574460 is a wasteful number, since it uses less digits than its factorization.

561574460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19685 (or 19683 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 561574460 is about 23697.5623218929. The cubic root of 561574460 is about 825.0288131963.

The spelling of 561574460 in words is "five hundred sixty-one million, five hundred seventy-four thousand, four hundred sixty".