22244432 has 60 divisors (see below), whose sum is σ = 53116020. Its totient is φ = 8967168.

The previous prime is 22244429. The next prime is 22244441. The reversal of 22244432 is 23444222.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 7529536 = 3836^2 + 2744^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22244398 and 22244407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12494 + ... + 14162.

It is an arithmetic number, because the mean of its divisors is an integer number (885267).

Almost surely, 2^22244432 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 22244432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26558010).

22244432 is an abundant number, since it is smaller than the sum of its proper divisors (30871588).

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

22244432 is a wasteful number, since it uses less digits than its factorization.

22244432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708 (or 1695 counting only the distinct ones).

The product of its digits is 3072, while the sum is 23.

The square root of 22244432 is about 4716.4003222797. The cubic root of 22244432 is about 281.2378528416.

Adding to 22244432 its reverse (23444222), we get a palindrome (45688654).

The spelling of 22244432 in words is "twenty-two million, two hundred forty-four thousand, four hundred thirty-two".