4090904 has 32 divisors (see below), whose sum is σ = 7968240. Its totient is φ = 1968000.

The previous prime is 4090903. The next prime is 4090907.

4090904 is nontrivially palindromic in base 10.

4090904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4090901) 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 7 ways as a sum of consecutive naturals, for example, 40454 + ... + 40554.

Almost surely, 2^4090904 is an apocalyptic number.

It is an amenable number.

4090904 is a deficient number, since it is larger than the sum of its proper divisors (3877336).

4090904 is a wasteful number, since it uses less digits than its factorization.

4090904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 4090904 is about 2022.5983288829. The cubic root of 4090904 is about 159.9336182963.

It can be divided in two parts, 4090 and 904, that added together give a palindrome (4994).

The spelling of 4090904 in words is "four million, ninety thousand, nine hundred four".