800390960 has 40 divisors (see below), whose sum is σ = 1958855280. Its totient is φ = 303305472.

The previous prime is 800390959. The next prime is 800390977. The reversal of 800390960 is 69093008.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 800390960.

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 7 ways as a sum of consecutive naturals, for example, 261767 + ... + 264806.

It is an arithmetic number, because the mean of its divisors is an integer number (48971382).

Almost surely, 2^800390960 is an apocalyptic number.

800390960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

800390960 is an abundant number, since it is smaller than the sum of its proper divisors (1158464320).

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

800390960 is a wasteful number, since it uses less digits than its factorization.

800390960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526605 (or 526599 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 800390960 is about 28291.1816649641. The cubic root of 800390960 is about 928.4689650592.

The spelling of 800390960 in words is "eight hundred million, three hundred ninety thousand, nine hundred sixty".