90040804 has 12 divisors (see below), whose sum is σ = 180081664. Its totient is φ = 38588904.

The previous prime is 90040777. The next prime is 90040813. The reversal of 90040804 is 40804009.

90040804 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607844 + ... + 1607899.

Almost surely, 2^90040804 is an apocalyptic number.

It is an amenable number.

90040804 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90040804 is a wasteful number, since it uses less digits than its factorization.

90040804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215754 (or 3215752 counting only the distinct ones).

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

The square root of 90040804 is about 9488.9832964338. The cubic root of 90040804 is about 448.2081900674.

It can be divided in two parts, 900 and 40804, that multiplied together give a square (36723600 = 6060²).

The spelling of 90040804 in words is "ninety million, forty thousand, eight hundred four".