9040990 has 24 divisors (see below), whose sum is σ = 18931752. Its totient is φ = 3099600.

The previous prime is 9040963. The next prime is 9041023. The reversal of 9040990 is 990409.

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 11 ways as a sum of consecutive naturals, for example, 8736 + ... + 9715.

It is an arithmetic number, because the mean of its divisors is an integer number (788823).

Almost surely, 2^9040990 is an apocalyptic number.

9040990 is an abundant number, since it is smaller than the sum of its proper divisors (9890762).

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

9040990 is a wasteful number, since it uses less digits than its factorization.

9040990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18472 (or 18465 counting only the distinct ones).

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

The square root of 9040990 is about 3006.8239057185. The cubic root of 9040990 is about 208.3236916427.

The spelling of 9040990 in words is "nine million, forty thousand, nine hundred ninety".