22638038 has 24 divisors (see below), whose sum is σ = 36101208. Its totient is φ = 10640448.

The previous prime is 22638037. The next prime is 22638107. The reversal of 22638038 is 83083622.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22637995 and 22638013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22638037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72170 + ... + 72482.

It is an arithmetic number, because the mean of its divisors is an integer number (1504217).

Almost surely, 2^22638038 is an apocalyptic number.

22638038 is a deficient number, since it is larger than the sum of its proper divisors (13463170).

22638038 is a wasteful number, since it uses less digits than its factorization.

22638038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 22638038 is about 4757.9447243532. The cubic root of 22638038 is about 282.8869597274.

It can be divided in two parts, 2263 and 8038, that added together give a palindrome (10301).

The spelling of 22638038 in words is "twenty-two million, six hundred thirty-eight thousand, thirty-eight".