2638044804 has 24 divisors (see below), whose sum is σ = 6180985888. Its totient is φ = 875698560.

The previous prime is 2638044791. The next prime is 2638044821. The reversal of 2638044804 is 4084408362.

It is a super-2 number, since 2×2638044804² = 13918560775822796832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453202 + ... + 458985.

Almost surely, 2^2638044804 is an apocalyptic number.

It is an amenable number.

2638044804 is an abundant number, since it is smaller than the sum of its proper divisors (3542941084).

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

2638044804 is a wasteful number, since it uses less digits than its factorization.

2638044804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912435 (or 912433 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 2638044804 is about 51361.9003153115. The cubic root of 2638044804 is about 1381.7433690143.

The spelling of 2638044804 in words is "two billion, six hundred thirty-eight million, forty-four thousand, eight hundred four".