864864360 has 48 divisors (see below), whose sum is σ = 2810810340. Its totient is φ = 230630400.

The previous prime is 864864337. The next prime is 864864389. The reversal of 864864360 is 63468468.

It can be written as a sum of positive squares in 2 ways, for example, as 815330916 + 49533444 = 28554^2 + 7038^2 .

It is a super-2 number, since 2×864864360² = 1495980722396419200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1200841 + ... + 1201560.

Almost surely, 2^864864360 is an apocalyptic number.

It is an amenable number.

864864360 is an abundant number, since it is smaller than the sum of its proper divisors (1945945980).

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

864864360 is a wasteful number, since it uses less digits than its factorization.

864864360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402418 (or 2402411 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The square root of 864864360 is about 29408.5763001203. The cubic root of 864864360 is about 952.7581378186.

The spelling of 864864360 in words is "eight hundred sixty-four million, eight hundred sixty-four thousand, three hundred sixty".