22008939 has 16 divisors (see below), whose sum is σ = 30132000. Its totient is φ = 14283776.

The previous prime is 22008929. The next prime is 22008949. The reversal of 22008939 is 93980022.

It is an interprime number because it is at equal distance from previous prime (22008929) and next prime (22008949).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22008939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22008919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23227 + ... + 24155.

It is an arithmetic number, because the mean of its divisors is an integer number (1883250).

Almost surely, 2^22008939 is an apocalyptic number.

22008939 is a deficient number, since it is larger than the sum of its proper divisors (8123061).

22008939 is a wasteful number, since it uses less digits than its factorization.

22008939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 22008939 is about 4691.3685636496. The cubic root of 22008939 is about 280.2418785776.

The spelling of 22008939 in words is "twenty-two million, eight thousand, nine hundred thirty-nine".