2243768172 has 24 divisors (see below), whose sum is σ = 5284391616. Its totient is φ = 740932368.

The previous prime is 2243768147. The next prime is 2243768221. The reversal of 2243768172 is 2718673422.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872458 + ... + 875025.

It is an arithmetic number, because the mean of its divisors is an integer number (220182984).

Almost surely, 2^2243768172 is an apocalyptic number.

It is an amenable number.

2243768172 is an abundant number, since it is smaller than the sum of its proper divisors (3040623444).

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

2243768172 is a wasteful number, since it uses less digits than its factorization.

2243768172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747597 (or 1747595 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 2243768172 is about 47368.4301196483. The cubic root of 2243768172 is about 1309.1597999853.

It can be divided in two parts, 22437 and 68172, that added together give a palindrome (90609).

The spelling of 2243768172 in words is "two billion, two hundred forty-three million, seven hundred sixty-eight thousand, one hundred seventy-two".