22643622 has 24 divisors (see below), whose sum is σ = 49179000. Its totient is φ = 7529760.

The previous prime is 22643597. The next prime is 22643641. The reversal of 22643622 is 22634622.

22643622 is a `hidden beast` number, since 226 + 436 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7722 + ... + 10242.

It is an arithmetic number, because the mean of its divisors is an integer number (2049125).

Almost surely, 2^22643622 is an apocalyptic number.

22643622 is an abundant number, since it is smaller than the sum of its proper divisors (26535378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22643622 is a wasteful number, since it uses less digits than its factorization.

22643622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028 (or 3025 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 22643622 is about 4758.5314961656. The cubic root of 22643622 is about 282.9102172041.

It can be divided in two parts, 2264 and 3622, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 22643622 in words is "twenty-two million, six hundred forty-three thousand, six hundred twenty-two".