56440692 has 144 divisors (see below), whose sum is σ = 184114560. Its totient is φ = 14636160.

The previous prime is 56440673. The next prime is 56440717. The reversal of 56440692 is 29604465.

56440692 is a `hidden beast` number, since 5 + 644 + 0 + 6 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91168 + ... + 91784.

Almost surely, 2^56440692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56440692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92057280).

56440692 is an abundant number, since it is smaller than the sum of its proper divisors (127673868).

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

56440692 is a wasteful number, since it uses less digits than its factorization.

56440692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 56440692 is about 7512.7020438721. The cubic root of 56440692 is about 383.5872028896.

The spelling of 56440692 in words is "fifty-six million, four hundred forty thousand, six hundred ninety-two".