3900408 has 16 divisors (see below), whose sum is σ = 9751080. Its totient is φ = 1300128.

The previous prime is 3900397. The next prime is 3900433. The reversal of 3900408 is 8040093.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 162517 = 3900408 / (3 + 9 + 0 + 0 + 4 + 0 + 8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81235 + ... + 81282.

Almost surely, 2^3900408 is an apocalyptic number.

It is an amenable number.

3900408 is an abundant number, since it is smaller than the sum of its proper divisors (5850672).

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

3900408 is a wasteful number, since it uses less digits than its factorization.

3900408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162526 (or 162522 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 3900408 is about 1974.9450625271. The cubic root of 3900408 is about 157.4115805047.

The spelling of 3900408 in words is "three million, nine hundred thousand, four hundred eight".