22239120 has 80 divisors (see below), whose sum is σ = 72584640. Its totient is φ = 5617152.

The previous prime is 22239079. The next prime is 22239149. The reversal of 22239120 is 2193222.

It is a tau number, because it is divible by the number of its divisors (80).

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, 2122 + ... + 6998.

It is an arithmetic number, because the mean of its divisors is an integer number (907308).

Almost surely, 2^22239120 is an apocalyptic number.

22239120 is a gapful number since it is divisible by the number (20) 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 22239120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36292320).

22239120 is an abundant number, since it is smaller than the sum of its proper divisors (50345520).

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

22239120 is a wasteful number, since it uses less digits than its factorization.

22239120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4912 (or 4906 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 22239120 is about 4715.8371473154. The cubic root of 22239120 is about 281.2154644014.

The spelling of 22239120 in words is "twenty-two million, two hundred thirty-nine thousand, one hundred twenty".