22638022 has 8 divisors (see below), whose sum is σ = 37044072. Its totient is φ = 10290000.

The previous prime is 22638013. The next prime is 22638023. The reversal of 22638022 is 22083622.

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 (22638023) 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, 514479 + ... + 514522.

It is an arithmetic number, because the mean of its divisors is an integer number (4630509).

Almost surely, 2^22638022 is an apocalyptic number.

22638022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22638022 is a deficient number, since it is larger than the sum of its proper divisors (14406050).

22638022 is a wasteful number, since it uses less digits than its factorization.

22638022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029014.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 22638022 is about 4757.9430429546. The cubic root of 22638022 is about 282.8868930816.

The spelling of 22638022 in words is "twenty-two million, six hundred thirty-eight thousand, twenty-two".