864233380 has 12 divisors (see below), whose sum is σ = 1814890140. Its totient is φ = 345693344.

The previous prime is 864233353. The next prime is 864233413. The reversal of 864233380 is 83332468.

It can be written as a sum of positive squares in 2 ways, for example, as 350213796 + 514019584 = 18714^2 + 22672^2 .

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, 21605815 + ... + 21605854.

It is an arithmetic number, because the mean of its divisors is an integer number (151240845).

Almost surely, 2^864233380 is an apocalyptic number.

It is an amenable number.

864233380 is an abundant number, since it is smaller than the sum of its proper divisors (950656760).

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

864233380 is a wasteful number, since it uses less digits than its factorization.

864233380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43211678 (or 43211676 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 864233380 is about 29397.8465197708. The cubic root of 864233380 is about 952.5263798629.

The spelling of 864233380 in words is "eight hundred sixty-four million, two hundred thirty-three thousand, three hundred eighty".