804715280 has 20 divisors (see below), whose sum is σ = 1870963212. Its totient is φ = 321886080.

The previous prime is 804715243. The next prime is 804715291. The reversal of 804715280 is 82517408.

It can be written as a sum of positive squares in 2 ways, for example, as 373571584 + 431143696 = 19328^2 + 20764^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 804715280.

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 3 ways as a sum of consecutive naturals, for example, 5029391 + ... + 5029550.

Almost surely, 2^804715280 is an apocalyptic number.

804715280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804715280 is an abundant number, since it is smaller than the sum of its proper divisors (1066247932).

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

804715280 is a wasteful number, since it uses less digits than its factorization.

804715280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10058954 (or 10058948 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 804715280 is about 28367.5039437734. The cubic root of 804715280 is about 930.1380609772.

The spelling of 804715280 in words is "eight hundred four million, seven hundred fifteen thousand, two hundred eighty".