22742212 has 12 divisors (see below), whose sum is σ = 40393360. Its totient is φ = 11201256.

The previous prime is 22742197. The next prime is 22742273. The reversal of 22742212 is 21224722.

It is a happy number.

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, 42162 + ... + 42697.

Almost surely, 2^22742212 is an apocalyptic number.

It is an amenable number.

22742212 is a deficient number, since it is larger than the sum of its proper divisors (17651148).

22742212 is a wasteful number, since it uses less digits than its factorization.

22742212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84930 (or 84928 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 22742212 is about 4768.8795329721. The cubic root of 22742212 is about 283.3202183856.

Adding to 22742212 its reverse (21224722), we get a palindrome (43966934).

The spelling of 22742212 in words is "twenty-two million, seven hundred forty-two thousand, two hundred twelve".