804388400 has 30 divisors (see below), whose sum is σ = 1932544092. Its totient is φ = 321755200.

The previous prime is 804388373. The next prime is 804388421. The reversal of 804388400 is 4883408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1005086 + ... + 1005885.

Almost surely, 2^804388400 is an apocalyptic number.

804388400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804388400 is an abundant number, since it is smaller than the sum of its proper divisors (1128155692).

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

804388400 is a wasteful number, since it uses less digits than its factorization.

804388400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010989 (or 2010978 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 804388400 is about 28361.7418364952. The cubic root of 804388400 is about 930.0121014342.

The spelling of 804388400 in words is "eight hundred four million, three hundred eighty-eight thousand, four hundred".