2222187838 has 32 divisors (see below), whose sum is σ = 3627348480. Its totient is φ = 1014924000.

The previous prime is 2222187829. The next prime is 2222187839. The reversal of 2222187838 is 8387812222.

It is a super-2 number, since 2×2222187838² = 9876237574710228488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2222187794 and 2222187803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222187839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088823 + ... + 1090861.

It is an arithmetic number, because the mean of its divisors is an integer number (113354640).

Almost surely, 2^2222187838 is an apocalyptic number.

2222187838 is a deficient number, since it is larger than the sum of its proper divisors (1405160642).

2222187838 is a wasteful number, since it uses less digits than its factorization.

2222187838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472.

The product of its digits is 172032, while the sum is 43.

The square root of 2222187838 is about 47140.0873779419. The cubic root of 2222187838 is about 1304.9491498710.

The spelling of 2222187838 in words is "two billion, two hundred twenty-two million, one hundred eighty-seven thousand, eight hundred thirty-eight".