3918904 has 16 divisors (see below), whose sum is σ = 8016120. Its totient is φ = 1781280.

The previous prime is 3918899. The next prime is 3918913. The reversal of 3918904 is 4098193.

It is a super-2 number, since 2×3918904² = 30715617122432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3918904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22179 + ... + 22354.

Almost surely, 2^3918904 is an apocalyptic number.

It is an amenable number.

3918904 is an abundant number, since it is smaller than the sum of its proper divisors (4097216).

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

3918904 is a wasteful number, since it uses less digits than its factorization.

3918904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44550 (or 44546 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3918904 is about 1979.6221861759. The cubic root of 3918904 is about 157.6600070391.

The spelling of 3918904 in words is "three million, nine hundred eighteen thousand, nine hundred four".