804400024 has 8 divisors (see below), whose sum is σ = 1508250060. Its totient is φ = 402200008.

The previous prime is 804400013. The next prime is 804400039. The reversal of 804400024 is 420004408.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×804400024² = 1294118797222401152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 804399968 and 804400004.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 50274994 + ... + 50275009.

Almost surely, 2^804400024 is an apocalyptic number.

It is an amenable number.

804400024 is a deficient number, since it is larger than the sum of its proper divisors (703850036).

804400024 is a wasteful number, since it uses less digits than its factorization.

804400024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100550009 (or 100550005 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 804400024 is about 28361.9467596990. The cubic root of 804400024 is about 930.0165811974.

The spelling of 804400024 in words is "eight hundred four million, four hundred thousand, twenty-four".