7940904 has 32 divisors (see below), whose sum is σ = 21021120. Its totient is φ = 2491136.

The previous prime is 7940893. The next prime is 7940927. The reversal of 7940904 is 4090497.

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 7 ways as a sum of consecutive naturals, for example, 9324 + ... + 10139.

It is an arithmetic number, because the mean of its divisors is an integer number (656910).

Almost surely, 2^7940904 is an apocalyptic number.

It is an amenable number.

7940904 is an abundant number, since it is smaller than the sum of its proper divisors (13080216).

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

7940904 is a wasteful number, since it uses less digits than its factorization.

7940904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19489 (or 19485 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7940904 is about 2817.9609649532. The cubic root of 7940904 is about 199.5063157152.

The spelling of 7940904 in words is "seven million, nine hundred forty thousand, nine hundred four".