868280320 has 48 divisors (see below), whose sum is σ = 2083388580. Its totient is φ = 347308032.

The previous prime is 868280317. The next prime is 868280339. The reversal of 868280320 is 23082868.

It can be written as a sum of positive squares in 2 ways, for example, as 842392576 + 25887744 = 29024^2 + 5088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 868280320.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32157 + ... + 52636.

Almost surely, 2^868280320 is an apocalyptic number.

868280320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

868280320 is an abundant number, since it is smaller than the sum of its proper divisors (1215108260).

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

868280320 is an equidigital number, since it uses as much as digits as its factorization.

868280320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84820 (or 84800 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 868280320 is about 29466.5966816665. The cubic root of 868280320 is about 954.0108614954.

The spelling of 868280320 in words is "eight hundred sixty-eight million, two hundred eighty thousand, three hundred twenty".