22449944 has 64 divisors (see below), whose sum is σ = 50112000. Its totient is φ = 9313920.

The previous prime is 22449907. The next prime is 22449961. The reversal of 22449944 is 44994422.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22449898 and 22449907.

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, 48257 + ... + 48719.

It is an arithmetic number, because the mean of its divisors is an integer number (783000).

Almost surely, 2^22449944 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 22449944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25056000).

22449944 is an abundant number, since it is smaller than the sum of its proper divisors (27662056).

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

22449944 is a wasteful number, since it uses less digits than its factorization.

22449944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 524 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 22449944 is about 4738.1371867011. The cubic root of 22449944 is about 282.1012998910.

The spelling of 22449944 in words is "twenty-two million, four hundred forty-nine thousand, nine hundred forty-four".