2644871222 has 32 divisors (see below), whose sum is σ = 4660757760. Its totient is φ = 1101898080.

The previous prime is 2644871221. The next prime is 2644871263. The reversal of 2644871222 is 2221784462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644871221) 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, 1040429 + ... + 1042967.

It is an arithmetic number, because the mean of its divisors is an integer number (145648680).

Almost surely, 2^2644871222 is an apocalyptic number.

2644871222 is a deficient number, since it is larger than the sum of its proper divisors (2015886538).

2644871222 is a wasteful number, since it uses less digits than its factorization.

2644871222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596.

The product of its digits is 86016, while the sum is 38.

The square root of 2644871222 is about 51428.3114830732. The cubic root of 2644871222 is about 1382.9341794066.

The spelling of 2644871222 in words is "two billion, six hundred forty-four million, eight hundred seventy-one thousand, two hundred twenty-two".