22938194 has 4 divisors (see below), whose sum is σ = 34407294. Its totient is φ = 11469096.

The previous prime is 22938193. The next prime is 22938247. The reversal of 22938194 is 49183922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49183922 = 2 ⋅24591961.

It can be written as a sum of positive squares in only one way, i.e., 21967969 + 970225 = 4687^2 + 985^2 .

It is not an unprimeable number, because it can be changed into a prime (22938193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5734547 + ... + 5734550.

Almost surely, 2^22938194 is an apocalyptic number.

22938194 is a deficient number, since it is larger than the sum of its proper divisors (11469100).

22938194 is a wasteful number, since it uses less digits than its factorization.

22938194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11469099.

The product of its digits is 31104, while the sum is 38.

The square root of 22938194 is about 4789.3834676292. The cubic root of 22938194 is about 284.1317331731.

It can be divided in two parts, 22938 and 194, that added together give a palindrome (23132).

The spelling of 22938194 in words is "twenty-two million, nine hundred thirty-eight thousand, one hundred ninety-four".