561384992 has 24 divisors (see below), whose sum is σ = 1263116736. Its totient is φ = 240593472.

The previous prime is 561384973. The next prime is 561385003. The reversal of 561384992 is 299483165.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1252868 + ... + 1253315.

It is an arithmetic number, because the mean of its divisors is an integer number (52629864).

Almost surely, 2^561384992 is an apocalyptic number.

It is an amenable number.

561384992 is an abundant number, since it is smaller than the sum of its proper divisors (701731744).

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

561384992 is a wasteful number, since it uses less digits than its factorization.

561384992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506200 (or 2506192 counting only the distinct ones).

The product of its digits is 466560, while the sum is 47.

The square root of 561384992 is about 23693.5643582809. The cubic root of 561384992 is about 824.9360180561.

The spelling of 561384992 in words is "five hundred sixty-one million, three hundred eighty-four thousand, nine hundred ninety-two".