22638441 has 24 divisors (see below), whose sum is σ = 37182240. Its totient is φ = 12173952.

The previous prime is 22638397. The next prime is 22638457. The reversal of 22638441 is 14483622.

It is not a de Polignac number, because 22638441 - 2⁶ = 22638377 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22638399 and 22638408.

It is not an unprimeable number, because it can be changed into a prime (22638461) 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, 2031 + ... + 7028.

It is an arithmetic number, because the mean of its divisors is an integer number (1549260).

Almost surely, 2^22638441 is an apocalyptic number.

22638441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22638441 is a deficient number, since it is larger than the sum of its proper divisors (14543799).

22638441 is a wasteful number, since it uses less digits than its factorization.

22638441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9093 (or 9086 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 22638441 is about 4757.9870743835. The cubic root of 22638441 is about 282.8886383589. Note that the first 3 decimals are identical.

The spelling of 22638441 in words is "twenty-two million, six hundred thirty-eight thousand, four hundred forty-one".