56940978 has 16 divisors (see below), whose sum is σ = 117809280. Its totient is φ = 18325776.

The previous prime is 56940977. The next prime is 56940991. The reversal of 56940978 is 87904965.

It is not an unprimeable number, because it can be changed into a prime (56940977) 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, 163450 + ... + 163797.

It is an arithmetic number, because the mean of its divisors is an integer number (7363080).

Almost surely, 2^56940978 is an apocalyptic number.

56940978 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

56940978 is an abundant number, since it is smaller than the sum of its proper divisors (60868302).

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

56940978 is a wasteful number, since it uses less digits than its factorization.

56940978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327281.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 56940978 is about 7545.9245954356. The cubic root of 56940978 is about 384.7172331977.

The spelling of 56940978 in words is "fifty-six million, nine hundred forty thousand, nine hundred seventy-eight".