22643038 has 16 divisors (see below), whose sum is σ = 38055024. Its totient is φ = 10013760.

The previous prime is 22643021. The next prime is 22643039. The reversal of 22643038 is 83034622.

It is a junction number, because it is equal to n+sod(n) for n = 22642997 and 22643015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22643039) 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, 13095 + ... + 14722.

It is an arithmetic number, because the mean of its divisors is an integer number (2378439).

Almost surely, 2^22643038 is an apocalyptic number.

22643038 is a deficient number, since it is larger than the sum of its proper divisors (15411986).

22643038 is a wasteful number, since it uses less digits than its factorization.

22643038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27867.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 22643038 is about 4758.4701323009. The cubic root of 22643038 is about 282.9077850109.

It can be divided in two parts, 226 and 43038, that added together give a square (43264 = 208²).

The spelling of 22643038 in words is "twenty-two million, six hundred forty-three thousand, thirty-eight".