20082904 has 16 divisors (see below), whose sum is σ = 37888920. Its totient is φ = 9979200.

The previous prime is 20082893. The next prime is 20082911. The reversal of 20082904 is 40928002.

It is a congruent number.

It is an unprimeable number.

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, 6397 + ... + 9004.

Almost surely, 2^20082904 is an apocalyptic number.

It is an amenable number.

20082904 is a deficient number, since it is larger than the sum of its proper divisors (17806016).

20082904 is a wasteful number, since it uses less digits than its factorization.

20082904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15570 (or 15566 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20082904 is about 4481.3953184248. The cubic root of 20082904 is about 271.8163047467.

The spelling of 20082904 in words is "twenty million, eighty-two thousand, nine hundred four".