22442992 has 80 divisors (see below), whose sum is σ = 54184032. Its totient is φ = 8847360.

The previous prime is 22442969. The next prime is 22443007. The reversal of 22442992 is 29924422.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 38608 + ... + 39184.

Almost surely, 2^22442992 is an apocalyptic number.

22442992 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 22442992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27092016).

22442992 is an abundant number, since it is smaller than the sum of its proper divisors (31741040).

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

22442992 is a wasteful number, since it uses less digits than its factorization.

22442992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 620 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 22442992 is about 4737.4035082522. The cubic root of 22442992 is about 282.0721777588.

The spelling of 22442992 in words is "twenty-two million, four hundred forty-two thousand, nine hundred ninety-two".