9904090 has 32 divisors (see below), whose sum is σ = 20530944. Its totient is φ = 3369600.

The previous prime is 9904079. The next prime is 9904117. The reversal of 9904090 is 904099.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10102 + ... + 11038.

It is an arithmetic number, because the mean of its divisors is an integer number (641592).

Almost surely, 2^9904090 is an apocalyptic number.

9904090 is an abundant number, since it is smaller than the sum of its proper divisors (10626854).

9904090 is a wasteful number, since it uses less digits than its factorization.

9904090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 9904090 is about 3147.0764210613. The cubic root of 9904090 is about 214.7524824177.

The spelling of 9904090 in words is "nine million, nine hundred four thousand, ninety".