22638953 has 8 divisors (see below), whose sum is σ = 23001408. Its totient is φ = 22279504.

The previous prime is 22638947. The next prime is 22638971. The reversal of 22638953 is 35983622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22638953 - 2¹⁴ = 22622569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22638853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17900 + ... + 19122.

It is an arithmetic number, because the mean of its divisors is an integer number (2875176).

Almost surely, 2^22638953 is an apocalyptic number.

It is an amenable number.

22638953 is a deficient number, since it is larger than the sum of its proper divisors (362455).

22638953 is a wasteful number, since it uses less digits than its factorization.

22638953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503.

The product of its digits is 77760, while the sum is 38.

The square root of 22638953 is about 4758.0408783448. The cubic root of 22638953 is about 282.8907709835.

The spelling of 22638953 in words is "twenty-two million, six hundred thirty-eight thousand, nine hundred fifty-three".