22553938 has 48 divisors (see below), whose sum is σ = 40637376. Its totient is φ = 9289280.

The previous prime is 22553933. The next prime is 22553941. The reversal of 22553938 is 83935522.

It is a junction number, because it is equal to n+sod(n) for n = 22553897 and 22553906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22553933) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425520 + ... + 425572.

It is an arithmetic number, because the mean of its divisors is an integer number (846612).

Almost surely, 2^22553938 is an apocalyptic number.

22553938 is the 2539-th centered heptagonal number.

22553938 is a deficient number, since it is larger than the sum of its proper divisors (18083438).

22553938 is a wasteful number, since it uses less digits than its factorization.

22553938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 118 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 22553938 is about 4749.0986513232. The cubic root of 22553938 is about 282.5362179790.

The spelling of 22553938 in words is "twenty-two million, five hundred fifty-three thousand, nine hundred thirty-eight".