22338438 has 16 divisors (see below), whose sum is σ = 45289776. Its totient is φ = 7344000.

The previous prime is 22338427. The next prime is 22338461. The reversal of 22338438 is 83483322.

It is a junction number, because it is equal to n+sod(n) for n = 22338399 and 22338408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25063 + ... + 25938.

It is an arithmetic number, because the mean of its divisors is an integer number (2830611).

Almost surely, 2^22338438 is an apocalyptic number.

22338438 is an abundant number, since it is smaller than the sum of its proper divisors (22951338).

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

22338438 is a wasteful number, since it uses less digits than its factorization.

22338438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51079.

The product of its digits is 27648, while the sum is 33.

The square root of 22338438 is about 4726.3556785329. The cubic root of 22338438 is about 281.6334707950.

The spelling of 22338438 in words is "twenty-two million, three hundred thirty-eight thousand, four hundred thirty-eight".