804000840 has 32 divisors (see below), whose sum is σ = 2412002880. Its totient is φ = 214400192.

The previous prime is 804000833. The next prime is 804000851. The reversal of 804000840 is 48000408.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 804000840.

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, 3349884 + ... + 3350123.

It is an arithmetic number, because the mean of its divisors is an integer number (75375090).

Almost surely, 2^804000840 is an apocalyptic number.

It is an amenable number.

804000840 is an abundant number, since it is smaller than the sum of its proper divisors (1608002040).

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

804000840 is a wasteful number, since it uses less digits than its factorization.

804000840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700021 (or 6700017 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 804000840 is about 28354.9085697697. The cubic root of 804000840 is about 929.8627153117.

The spelling of 804000840 in words is "eight hundred four million, eight hundred forty", and thus it is an aban number.