2222138 has 8 divisors (see below), whose sum is σ = 3529332. Its totient is φ = 1045696.

The previous prime is 2222123. The next prime is 2222141. The reversal of 2222138 is 8312222.

It can be written as a sum of positive squares in 2 ways, for example, as 1841449 + 380689 = 1357^2 + 617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2⁴ + 2⁷ + 2⁸ + 2¹⁶ + 1 + 3¹⁰ + 8⁷ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32645 + ... + 32712.

2^2222138 is an apocalyptic number.

2222138 is a deficient number, since it is larger than the sum of its proper divisors (1307194).

2222138 is a wasteful number, since it uses less digits than its factorization.

2222138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65376.

The product of its digits is 384, while the sum is 20.

The square root of 2222138 is about 1490.6837357401. The cubic root of 2222138 is about 130.4939394239.

The spelling of 2222138 in words is "two million, two hundred twenty-two thousand, one hundred thirty-eight".