94239978 has 16 divisors (see below), whose sum is σ = 215405760. Its totient is φ = 26925696.

The previous prime is 94239949. The next prime is 94240033. The reversal of 94239978 is 87993249.

It is a self number, because there is not a number n which added to its sum of digits gives 94239978.

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, 1121863 + ... + 1121946.

It is an arithmetic number, because the mean of its divisors is an integer number (13462860).

Almost surely, 2^94239978 is an apocalyptic number.

94239978 is an abundant number, since it is smaller than the sum of its proper divisors (121165782).

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

94239978 is a wasteful number, since it uses less digits than its factorization.

94239978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243821.

The product of its digits is 979776, while the sum is 51.

The square root of 94239978 is about 9707.7277464915. The cubic root of 94239978 is about 455.0701948619.

The spelling of 94239978 in words is "ninety-four million, two hundred thirty-nine thousand, nine hundred seventy-eight".