8040844404 has 30 divisors (see below), whose sum is σ = 21020356434. Its totient is φ = 2680281360.

The previous prime is 8040844373. The next prime is 8040844411. The reversal of 8040844404 is 4044480408.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7655900004 + 384944400 = 87498^2 + 19620^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12408387 + ... + 12409034.

Almost surely, 2^8040844404 is an apocalyptic number.

It is an amenable number.

8040844404 is an abundant number, since it is smaller than the sum of its proper divisors (12979512030).

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

8040844404 is a wasteful number, since it uses less digits than its factorization.

8040844404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24817437 (or 24817426 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

The square root of 8040844404 is about 89670.7555672417. The cubic root of 8040844404 is about 2003.3979241198.

The spelling of 8040844404 in words is "eight billion, forty million, eight hundred forty-four thousand, four hundred four".