22939008 has 128 divisors (see below), whose sum is σ = 65802240. Its totient is φ = 7065600.

The previous prime is 22938943. The next prime is 22939013. The reversal of 22939008 is 80093922.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 22939008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488041 + ... + 488087.

It is an arithmetic number, because the mean of its divisors is an integer number (514080).

Almost surely, 2^22939008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22939008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32901120).

22939008 is an abundant number, since it is smaller than the sum of its proper divisors (42863232).

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

22939008 is a wasteful number, since it uses less digits than its factorization.

22939008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 124 counting only the distinct ones).

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

The square root of 22939008 is about 4789.4684464980. The cubic root of 22939008 is about 284.1350940958.

The spelling of 22939008 in words is "twenty-two million, nine hundred thirty-nine thousand, eight".