22355238 has 16 divisors (see below), whose sum is σ = 47340720. Its totient is φ = 7013376.

The previous prime is 22355237. The next prime is 22355243. The reversal of 22355238 is 83255322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22355237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109483 + ... + 109686.

It is an arithmetic number, because the mean of its divisors is an integer number (2958795).

Almost surely, 2^22355238 is an apocalyptic number.

22355238 is an abundant number, since it is smaller than the sum of its proper divisors (24985482).

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

22355238 is a wasteful number, since it uses less digits than its factorization.

22355238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219191.

The product of its digits is 14400, while the sum is 30.

The square root of 22355238 is about 4728.1326123534. The cubic root of 22355238 is about 281.7040555077.

The spelling of 22355238 in words is "twenty-two million, three hundred fifty-five thousand, two hundred thirty-eight".