561440092 has 12 divisors (see below), whose sum is σ = 982968336. Its totient is φ = 280592000.

The previous prime is 561440071. The next prime is 561440119. The reversal of 561440092 is 290044165.

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, 21784 + ... + 39967.

It is an arithmetic number, because the mean of its divisors is an integer number (81914028).

Almost surely, 2^561440092 is an apocalyptic number.

It is an amenable number.

561440092 is a deficient number, since it is larger than the sum of its proper divisors (421528244).

561440092 is a wasteful number, since it uses less digits than its factorization.

561440092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64028 (or 64026 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 561440092 is about 23694.7270927521. The cubic root of 561440092 is about 824.9630063608.

The spelling of 561440092 in words is "five hundred sixty-one million, four hundred forty thousand, ninety-two".