56678406 has 32 divisors (see below), whose sum is σ = 119673600. Its totient is φ = 17845920.

The previous prime is 56678399. The next prime is 56678411. The reversal of 56678406 is 60487665.

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 15 ways as a sum of consecutive naturals, for example, 61215 + ... + 62133.

It is an arithmetic number, because the mean of its divisors is an integer number (3739800).

Almost surely, 2^56678406 is an apocalyptic number.

56678406 is an abundant number, since it is smaller than the sum of its proper divisors (62995194).

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

56678406 is a wasteful number, since it uses less digits than its factorization.

56678406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 56678406 is about 7528.5062263373. The cubic root of 56678406 is about 384.1249728865.

The spelling of 56678406 in words is "fifty-six million, six hundred seventy-eight thousand, four hundred six".