804720312 has 64 divisors (see below), whose sum is σ = 2438553600. Its totient is φ = 243853920.

The previous prime is 804720311. The next prime is 804720337. The reversal of 804720312 is 213027408.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804720311) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 166968 + ... + 171719.

It is an arithmetic number, because the mean of its divisors is an integer number (38102400).

Almost surely, 2^804720312 is an apocalyptic number.

It is an amenable number.

804720312 is an abundant number, since it is smaller than the sum of its proper divisors (1633833288).

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

804720312 is a wasteful number, since it uses less digits than its factorization.

804720312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338713 (or 338703 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 804720312 is about 28367.5926366690. The cubic root of 804720312 is about 930.1399997354.

The spelling of 804720312 in words is "eight hundred four million, seven hundred twenty thousand, three hundred twelve".