22089744 has 60 divisors (see below), whose sum is σ = 62345712. Its totient is φ = 7300800.

The previous prime is 22089731. The next prime is 22089751. The reversal of 22089744 is 44798022.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22089699 and 22089708.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18279 + ... + 19449.

Almost surely, 2^22089744 is an apocalyptic number.

22089744 is a gapful number since it is divisible by the number (24) 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 22089744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31172856).

22089744 is an abundant number, since it is smaller than the sum of its proper divisors (40255968).

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

22089744 is a wasteful number, since it uses less digits than its factorization.

22089744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1307 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 22089744 is about 4699.9727658785. The cubic root of 22089744 is about 280.5844255768.

The spelling of 22089744 in words is "twenty-two million, eighty-nine thousand, seven hundred forty-four".