22329912 has 64 divisors (see below), whose sum is σ = 62415360. Its totient is φ = 6598400.

The previous prime is 22329899. The next prime is 22329917. The reversal of 22329912 is 21992322.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22329912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22329917) 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, 9793 + ... + 11855.

It is an arithmetic number, because the mean of its divisors is an integer number (975240).

Almost surely, 2^22329912 is an apocalyptic number.

22329912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22329912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31207680).

22329912 is an abundant number, since it is smaller than the sum of its proper divisors (40085448).

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

22329912 is a wasteful number, since it uses less digits than its factorization.

22329912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 2120 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 22329912 is about 4725.4536290181. The cubic root of 22329912 is about 281.5976355152.

It can be divided in two parts, 223 and 29912, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 22329912 in words is "twenty-two million, three hundred twenty-nine thousand, nine hundred twelve".