22938643 has 16 divisors (see below), whose sum is σ = 29720320. Its totient is φ = 17192736.

The previous prime is 22938637. The next prime is 22938653. The reversal of 22938643 is 34683922.

It is a cyclic number.

It is not a de Polignac number, because 22938643 - 2⁹ = 22938131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22938653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4905 + ... + 8362.

It is an arithmetic number, because the mean of its divisors is an integer number (1857520).

Almost surely, 2^22938643 is an apocalyptic number.

22938643 is a deficient number, since it is larger than the sum of its proper divisors (6781677).

22938643 is a wasteful number, since it uses less digits than its factorization.

22938643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13306.

The product of its digits is 62208, while the sum is 37.

The square root of 22938643 is about 4789.4303419092. The cubic root of 22938643 is about 284.1335870580.

The spelling of 22938643 in words is "twenty-two million, nine hundred thirty-eight thousand, six hundred forty-three".