3918404 has 12 divisors (see below), whose sum is σ = 7836864. Its totient is φ = 1679304.

The previous prime is 3918401. The next prime is 3918413. The reversal of 3918404 is 4048193.

3918404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3918404 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3918401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69944 + ... + 69999.

It is an arithmetic number, because the mean of its divisors is an integer number (653072).

Almost surely, 2^3918404 is an apocalyptic number.

It is an amenable number.

3918404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3918404 is a wasteful number, since it uses less digits than its factorization.

3918404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139954 (or 139952 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 3918404 is about 1979.4958954239. The cubic root of 3918404 is about 157.6533016476.

The spelling of 3918404 in words is "three million, nine hundred eighteen thousand, four hundred four".