864321282 has 48 divisors (see below), whose sum is σ = 2056541760. Its totient is φ = 260172000.

The previous prime is 864321281. The next prime is 864321299. The reversal of 864321282 is 282123468.

864321282 is a `hidden beast` number, since 8 + 643 + 2 + 1 + 2 + 8 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (864321281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15444 + ... + 44352.

It is an arithmetic number, because the mean of its divisors is an integer number (42844620).

Almost surely, 2^864321282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864321282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028270880).

864321282 is an abundant number, since it is smaller than the sum of its proper divisors (1192220478).

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

864321282 is a wasteful number, since it uses less digits than its factorization.

864321282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29079 (or 29076 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 864321282 is about 29399.3415232382. The cubic root of 864321282 is about 952.5586728898.

The spelling of 864321282 in words is "eight hundred sixty-four million, three hundred twenty-one thousand, two hundred eighty-two".