561268372 has 24 divisors (see below), whose sum is σ = 1131382784. Its totient is φ = 238648032.

The previous prime is 561268369. The next prime is 561268373. The reversal of 561268372 is 273862165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561268373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75363 + ... + 82474.

Almost surely, 2^561268372 is an apocalyptic number.

It is an amenable number.

561268372 is an abundant number, since it is smaller than the sum of its proper divisors (570114412).

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

561268372 is a wasteful number, since it uses less digits than its factorization.

561268372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157975 (or 157973 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 561268372 is about 23691.1032246284. The cubic root of 561268372 is about 824.8788910683.

It can be divided in two parts, 5612 and 68372, that added together give a square (73984 = 272²).

The spelling of 561268372 in words is "five hundred sixty-one million, two hundred sixty-eight thousand, three hundred seventy-two".