2242918188 has 144 divisors (see below), whose sum is σ = 7115157504. Its totient is φ = 603106560.

The previous prime is 2242918123. The next prime is 2242918189. The reversal of 2242918188 is 8818192422.

It is a super-2 number, since 2×2242918188² = 10061363996122406688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2242918189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105973 + ... + 125363.

It is an arithmetic number, because the mean of its divisors is an integer number (49410816).

Almost surely, 2^2242918188 is an apocalyptic number.

2242918188 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2242918188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3557578752).

2242918188 is an abundant number, since it is smaller than the sum of its proper divisors (4872239316).

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

2242918188 is a wasteful number, since it uses less digits than its factorization.

2242918188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19434 (or 19420 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 2242918188 is about 47359.4572181734. The cubic root of 2242918188 is about 1308.9944671850.

The spelling of 2242918188 in words is "two billion, two hundred forty-two million, nine hundred eighteen thousand, one hundred eighty-eight".