561938692 has 24 divisors (see below), whose sum is σ = 1138108160. Its totient is φ = 237781440.

The previous prime is 561938653. The next prime is 561938711. The reversal of 561938692 is 296839165.

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 7 ways as a sum of consecutive naturals, for example, 124809 + ... + 129232.

Almost surely, 2^561938692 is an apocalyptic number.

It is an amenable number.

561938692 is an abundant number, since it is smaller than the sum of its proper divisors (576169468).

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

561938692 is a wasteful number, since it uses less digits than its factorization.

561938692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254131 (or 254129 counting only the distinct ones).

The product of its digits is 699840, while the sum is 49.

The square root of 561938692 is about 23705.2460860460. The cubic root of 561938692 is about 825.2071433329.

The spelling of 561938692 in words is "five hundred sixty-one million, nine hundred thirty-eight thousand, six hundred ninety-two".