22638974 has 8 divisors (see below), whose sum is σ = 34057368. Its totient is φ = 11286520.

The previous prime is 22638971. The next prime is 22639031. The reversal of 22638974 is 47983622.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22638971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15617 + ... + 17004.

It is an arithmetic number, because the mean of its divisors is an integer number (4257171).

Almost surely, 2^22638974 is an apocalyptic number.

22638974 is a deficient number, since it is larger than the sum of its proper divisors (11418394).

22638974 is a wasteful number, since it uses less digits than its factorization.

22638974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32970.

The product of its digits is 145152, while the sum is 41.

The square root of 22638974 is about 4758.0430851349. The cubic root of 22638974 is about 282.8908584538.

The spelling of 22638974 in words is "twenty-two million, six hundred thirty-eight thousand, nine hundred seventy-four".