2218189276 has 48 divisors (see below), whose sum is σ = 4315449600. Its totient is φ = 992863872.

The previous prime is 2218189273. The next prime is 2218189279. The reversal of 2218189276 is 6729818122.

It is an interprime number because it is at equal distance from previous prime (2218189273) and next prime (2218189279).

It is a super-2 number, since 2×2218189276² = 9840727328322808352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218189273) 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, 137440 + ... + 152728.

It is an arithmetic number, because the mean of its divisors is an integer number (89905200).

Almost surely, 2^2218189276 is an apocalyptic number.

It is an amenable number.

2218189276 is a deficient number, since it is larger than the sum of its proper divisors (2097260324).

2218189276 is a wasteful number, since it uses less digits than its factorization.

2218189276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15418 (or 15416 counting only the distinct ones).

The product of its digits is 193536, while the sum is 46.

The square root of 2218189276 is about 47097.6567994630. The cubic root of 2218189276 is about 1304.1659798196.

The spelling of 2218189276 in words is "two billion, two hundred eighteen million, one hundred eighty-nine thousand, two hundred seventy-six".