22643422 has 8 divisors (see below), whose sum is σ = 35963136. Its totient is φ = 10655712.

The previous prime is 22643419. The next prime is 22643441. The reversal of 22643422 is 22434622.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 332958 + ... + 333025.

It is an arithmetic number, because the mean of its divisors is an integer number (4495392).

Almost surely, 2^22643422 is an apocalyptic number.

22643422 is a deficient number, since it is larger than the sum of its proper divisors (13319714).

22643422 is a wasteful number, since it uses less digits than its factorization.

22643422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666002.

The product of its digits is 4608, while the sum is 25.

The square root of 22643422 is about 4758.5104812325. The cubic root of 22643422 is about 282.9093842659.

The spelling of 22643422 in words is "twenty-two million, six hundred forty-three thousand, four hundred twenty-two".