56967640 has 16 divisors (see below), whose sum is σ = 128177280. Its totient is φ = 22787040.

The previous prime is 56967637. The next prime is 56967649. The reversal of 56967640 is 4676965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56967649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712056 + ... + 712135.

It is an arithmetic number, because the mean of its divisors is an integer number (8011080).

Almost surely, 2^56967640 is an apocalyptic number.

It is an amenable number.

56967640 is an abundant number, since it is smaller than the sum of its proper divisors (71209640).

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

56967640 is a wasteful number, since it uses less digits than its factorization.

56967640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424202 (or 1424198 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 56967640 is about 7547.6910376618. The cubic root of 56967640 is about 384.7772703958. Note that the first 3 decimals are identical.

The spelling of 56967640 in words is "fifty-six million, nine hundred sixty-seven thousand, six hundred forty".