3904408 has 8 divisors (see below), whose sum is σ = 7320780. Its totient is φ = 1952200.

The previous prime is 3904387. The next prime is 3904409. The reversal of 3904408 is 8044093.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3904409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244018 + ... + 244033.

Almost surely, 2^3904408 is an apocalyptic number.

It is an amenable number.

3904408 is a deficient number, since it is larger than the sum of its proper divisors (3416372).

3904408 is a wasteful number, since it uses less digits than its factorization.

3904408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488057 (or 488053 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3904408 is about 1975.9574894213. The cubic root of 3904408 is about 157.4653724160.

The spelling of 3904408 in words is "three million, nine hundred four thousand, four hundred eight".