22089639 has 48 divisors (see below), whose sum is σ = 36227072. Its totient is φ = 11880000.

The previous prime is 22089631. The next prime is 22089643. The reversal of 22089639 is 93698022.

It is not a de Polignac number, because 22089639 - 2³ = 22089631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22089597 and 22089606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22089631) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 146214 + ... + 146364.

Almost surely, 2^22089639 is an apocalyptic number.

22089639 is a deficient number, since it is larger than the sum of its proper divisors (14137433).

22089639 is a wasteful number, since it uses less digits than its factorization.

22089639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 22089639 is about 4699.9615955878. The cubic root of 22089639 is about 280.5839810053.

The spelling of 22089639 in words is "twenty-two million, eighty-nine thousand, six hundred thirty-nine".