864095388 has 48 divisors (see below), whose sum is σ = 2187943296. Its totient is φ = 263839680.

The previous prime is 864095381. The next prime is 864095389. The reversal of 864095388 is 883590468.

It is a self number, because there is not a number n which added to its sum of digits gives 864095388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864095381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706 + ... + 41577.

It is an arithmetic number, because the mean of its divisors is an integer number (45582152).

Almost surely, 2^864095388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864095388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1093971648).

864095388 is an abundant number, since it is smaller than the sum of its proper divisors (1323847908).

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

864095388 is a wasteful number, since it uses less digits than its factorization.

864095388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42434 (or 42432 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 864095388 is about 29395.4994514466. The cubic root of 864095388 is about 952.4756805882.

The spelling of 864095388 in words is "eight hundred sixty-four million, ninety-five thousand, three hundred eighty-eight".