22290939 has 12 divisors (see below), whose sum is σ = 35125272. Its totient is φ = 13509600.

The previous prime is 22290929. The next prime is 22290943. The reversal of 22290939 is 93909222.

It is not a de Polignac number, because 22290939 - 2⁵ = 22290907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22290929) 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 11 ways as a sum of consecutive naturals, for example, 112482 + ... + 112679.

It is an arithmetic number, because the mean of its divisors is an integer number (2927106).

Almost surely, 2^22290939 is an apocalyptic number.

22290939 is a deficient number, since it is larger than the sum of its proper divisors (12834333).

22290939 is a wasteful number, since it uses less digits than its factorization.

22290939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225178 (or 225175 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 22290939 is about 4721.3280970507. The cubic root of 22290939 is about 281.4337134531.

The spelling of 22290939 in words is "twenty-two million, two hundred ninety thousand, nine hundred thirty-nine".