22138622 has 8 divisors (see below), whose sum is σ = 36226872. Its totient is φ = 10063000.

The previous prime is 22138583. The next prime is 22138631. The reversal of 22138622 is 22683122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22138591 and 22138600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503129 + ... + 503172.

It is an arithmetic number, because the mean of its divisors is an integer number (4528359).

Almost surely, 2^22138622 is an apocalyptic number.

22138622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22138622 is a deficient number, since it is larger than the sum of its proper divisors (14088250).

22138622 is a wasteful number, since it uses less digits than its factorization.

22138622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006314.

The product of its digits is 2304, while the sum is 26.

The square root of 22138622 is about 4705.1697100105. The cubic root of 22138622 is about 280.7912229435.

The spelling of 22138622 in words is "twenty-two million, one hundred thirty-eight thousand, six hundred twenty-two".