22052138 has 8 divisors (see below), whose sum is σ = 33406020. Its totient is φ = 10916800.

The previous prime is 22052131. The next prime is 22052143. The reversal of 22052138 is 83125022.

It can be written as a sum of positive squares in 2 ways, for example, as 22024249 + 27889 = 4693^2 + 167^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22052131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54383 + ... + 54786.

Almost surely, 2^22052138 is an apocalyptic number.

22052138 is a deficient number, since it is larger than the sum of its proper divisors (11353882).

22052138 is a wasteful number, since it uses less digits than its factorization.

22052138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109272.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 22052138 is about 4695.9704002474. The cubic root of 22052138 is about 280.4251110496.

The spelling of 22052138 in words is "twenty-two million, fifty-two thousand, one hundred thirty-eight".