864357222 has 32 divisors (see below), whose sum is σ = 1780178400. Its totient is φ = 279583488.

The previous prime is 864357211. The next prime is 864357223. The reversal of 864357222 is 222753468.

It is a super-2 number, since 2×864357222² = 1494226814447114568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864357223) 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, 81354 + ... + 91362.

It is an arithmetic number, because the mean of its divisors is an integer number (55630575).

Almost surely, 2^864357222 is an apocalyptic number.

864357222 is an abundant number, since it is smaller than the sum of its proper divisors (915821178).

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

864357222 is a wasteful number, since it uses less digits than its factorization.

864357222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10440.

The product of its digits is 161280, while the sum is 39.

The square root of 864357222 is about 29399.9527550641. The cubic root of 864357222 is about 952.5718757288.

The spelling of 864357222 in words is "eight hundred sixty-four million, three hundred fifty-seven thousand, two hundred twenty-two".