22414440 has 64 divisors (see below), whose sum is σ = 67743360. Its totient is φ = 5932800.

The previous prime is 22414429. The next prime is 22414453. The reversal of 22414440 is 4441422.

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, 17502 + ... + 18738.

It is an arithmetic number, because the mean of its divisors is an integer number (1058490).

Almost surely, 2^22414440 is an apocalyptic number.

22414440 is a gapful number since it is divisible by the number (20) 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 22414440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33871680).

22414440 is an abundant number, since it is smaller than the sum of its proper divisors (45328920).

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

22414440 is a wasteful number, since it uses less digits than its factorization.

22414440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 22414440 is about 4734.3890841375. The cubic root of 22414440 is about 281.9525094818.

Adding to 22414440 its reverse (4441422), we get a palindrome (26855862).

The spelling of 22414440 in words is "twenty-two million, four hundred fourteen thousand, four hundred forty".