22681238 has 4 divisors (see below), whose sum is σ = 34021860. Its totient is φ = 11340618.

The previous prime is 22681207. The next prime is 22681271. The reversal of 22681238 is 83218622.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5670308 + ... + 5670311.

It is an arithmetic number, because the mean of its divisors is an integer number (8505465).

Almost surely, 2^22681238 is an apocalyptic number.

22681238 is a deficient number, since it is larger than the sum of its proper divisors (11340622).

22681238 is a wasteful number, since it uses less digits than its factorization.

22681238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11340621.

The product of its digits is 9216, while the sum is 32.

The square root of 22681238 is about 4762.4823359252. The cubic root of 22681238 is about 283.0667890826.

The spelling of 22681238 in words is "twenty-two million, six hundred eighty-one thousand, two hundred thirty-eight".