22219932 has 144 divisors (see below), whose sum is σ = 66189312. Its totient is φ = 5765760.

The previous prime is 22219927. The next prime is 22219933. The reversal of 22219932 is 23991222.

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 22219932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22219933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 419218 + ... + 419270.

It is an arithmetic number, because the mean of its divisors is an integer number (459648).

Almost surely, 2^22219932 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 22219932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33094656).

22219932 is an abundant number, since it is smaller than the sum of its proper divisors (43969380).

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

22219932 is a wasteful number, since it uses less digits than its factorization.

22219932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 119 counting only the distinct ones).

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

The square root of 22219932 is about 4713.8022869017. The cubic root of 22219932 is about 281.1345631943.

The spelling of 22219932 in words is "twenty-two million, two hundred nineteen thousand, nine hundred thirty-two".