8904040 has 16 divisors (see below), whose sum is σ = 20034180. Its totient is φ = 3561600.

The previous prime is 8904023. The next prime is 8904043. The reversal of 8904040 is 404098.

It can be written as a sum of positive squares in 2 ways, for example, as 7986276 + 917764 = 2826^2 + 958^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8903996 and 8904014.

It is not an unprimeable number, because it can be changed into a prime (8904043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 111261 + ... + 111340.

Almost surely, 2^8904040 is an apocalyptic number.

It is an amenable number.

8904040 is an abundant number, since it is smaller than the sum of its proper divisors (11130140).

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

8904040 is a wasteful number, since it uses less digits than its factorization.

8904040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222612 (or 222608 counting only the distinct ones).

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

The square root of 8904040 is about 2983.9638067510. The cubic root of 8904040 is about 207.2664619855.

The spelling of 8904040 in words is "eight million, nine hundred four thousand, forty".