22438296 has 80 divisors (see below), whose sum is σ = 64933440. Its totient is φ = 7231680.

The previous prime is 22438289. The next prime is 22438307. The reversal of 22438296 is 69283422.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22438296.

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 19 ways as a sum of consecutive naturals, for example, 19530 + ... + 20646.

It is an arithmetic number, because the mean of its divisors is an integer number (811668).

Almost surely, 2^22438296 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 22438296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32466720).

22438296 is an abundant number, since it is smaller than the sum of its proper divisors (42495144).

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

22438296 is a wasteful number, since it uses less digits than its factorization.

22438296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166 (or 1153 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 22438296 is about 4736.9078521753. The cubic root of 22438296 is about 282.0525026735.

22438296 divided by its sum of digits (36) gives a triangular number (623286 = T₁₁₁₆).

The spelling of 22438296 in words is "twenty-two million, four hundred thirty-eight thousand, two hundred ninety-six".