22159308 has 12 divisors (see below), whose sum is σ = 51705080. Its totient is φ = 7386432.

The previous prime is 22159307. The next prime is 22159331. The reversal of 22159308 is 80395122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (22159307) 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 3 ways as a sum of consecutive naturals, for example, 923293 + ... + 923316.

Almost surely, 2^22159308 is an apocalyptic number.

It is an amenable number.

22159308 is an abundant number, since it is smaller than the sum of its proper divisors (29545772).

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

22159308 is a wasteful number, since it uses less digits than its factorization.

22159308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846616 (or 1846614 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 22159308 is about 4707.3674171452. The cubic root of 22159308 is about 280.8786514364.

It can be divided in two parts, 22 and 159308, that added together give a triangular number (159330 = T₅₆₄).

The spelling of 22159308 in words is "twenty-two million, one hundred fifty-nine thousand, three hundred eight".