800400004 has 24 divisors (see below), whose sum is σ = 1475409600. Its totient is φ = 378882720.

The previous prime is 800399993. The next prime is 800400043. The reversal of 800400004 is 400004008.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160257 + ... + 165175.

It is an arithmetic number, because the mean of its divisors is an integer number (61475400).

Almost surely, 2^800400004 is an apocalyptic number.

It is an amenable number.

800400004 is a deficient number, since it is larger than the sum of its proper divisors (675009596).

800400004 is a wasteful number, since it uses less digits than its factorization.

800400004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7083 (or 7081 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 800400004 is about 28291.3415023042. The cubic root of 800400004 is about 928.4724621176.

The spelling of 800400004 in words is "eight hundred million, four hundred thousand, four".