42974816 has 12 divisors (see below), whose sum is σ = 84606732. Its totient is φ = 21487392.

The previous prime is 42974803. The next prime is 42974821. The reversal of 42974816 is 61847924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671450 + ... + 671513.

It is an arithmetic number, because the mean of its divisors is an integer number (7050561).

Almost surely, 2^42974816 is an apocalyptic number.

It is an amenable number.

42974816 is a deficient number, since it is larger than the sum of its proper divisors (41631916).

42974816 is a wasteful number, since it uses less digits than its factorization.

42974816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342973 (or 1342965 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 42974816 is about 6555.5179810599. The cubic root of 42974816 is about 350.2713976612.

The spelling of 42974816 in words is "forty-two million, nine hundred seventy-four thousand, eight hundred sixteen".