22114440 has 96 divisors (see below), whose sum is σ = 73457280. Its totient is φ = 5767296.

The previous prime is 22114387. The next prime is 22114451. The reversal of 22114440 is 4441122.

22114440 is a `hidden beast` number, since 221 + 1 + 4 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16267 + ... + 17573.

It is an arithmetic number, because the mean of its divisors is an integer number (765180).

Almost surely, 2^22114440 is an apocalyptic number.

22114440 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 22114440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36728640).

22114440 is an abundant number, since it is smaller than the sum of its proper divisors (51342840).

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

22114440 is a wasteful number, since it uses less digits than its factorization.

22114440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 22114440 is about 4702.5992812486. The cubic root of 22114440 is about 280.6889496836.

Adding to 22114440 its reverse (4441122), we get a palindrome (26555562).

The spelling of 22114440 in words is "twenty-two million, one hundred fourteen thousand, four hundred forty".