22027744 has 36 divisors (see below), whose sum is σ = 45515736. Its totient is φ = 10474112.

The previous prime is 22027711. The next prime is 22027777. The reversal of 22027744 is 44772022.

It is an interprime number because it is at equal distance from previous prime (22027711) and next prime (22027777).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127242 + ... + 127414.

It is an arithmetic number, because the mean of its divisors is an integer number (1264326).

Almost surely, 2^22027744 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 22027744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22757868).

22027744 is an abundant number, since it is smaller than the sum of its proper divisors (23487992).

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

22027744 is an equidigital number, since it uses as much as digits as its factorization.

22027744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 22027744 is about 4693.3723483227. The cubic root of 22027744 is about 280.3216711308.

Adding to 22027744 its reverse (44772022), we get a palindrome (66799766).

The spelling of 22027744 in words is "twenty-two million, twenty-seven thousand, seven hundred forty-four".