56978430 has 16 divisors (see below), whose sum is σ = 136748304. Its totient is φ = 15194240.

The previous prime is 56978419. The next prime is 56978447. The reversal of 56978430 is 3487965.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949611 + ... + 949670.

It is an arithmetic number, because the mean of its divisors is an integer number (8546769).

Almost surely, 2^56978430 is an apocalyptic number.

56978430 is an abundant number, since it is smaller than the sum of its proper divisors (79769874).

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

56978430 is a wasteful number, since it uses less digits than its factorization.

56978430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899291.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 56978430 is about 7548.4057919537. The cubic root of 56978430 is about 384.8015618746.

The spelling of 56978430 in words is "fifty-six million, nine hundred seventy-eight thousand, four hundred thirty".