22338439 has 4 divisors (see below), whose sum is σ = 23108760. Its totient is φ = 21568120.

The previous prime is 22338427. The next prime is 22338461. The reversal of 22338439 is 93483322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93483322 = 2 ⋅46741661.

It is a cyclic number.

It is not a de Polignac number, because 22338439 - 2⁷ = 22338311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22338419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385117 + ... + 385174.

It is an arithmetic number, because the mean of its divisors is an integer number (5777190).

Almost surely, 2^22338439 is an apocalyptic number.

22338439 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22338439 is a deficient number, since it is larger than the sum of its proper divisors (770321).

22338439 is an equidigital number, since it uses as much as digits as its factorization.

22338439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770320.

The product of its digits is 31104, while the sum is 34.

The square root of 22338439 is about 4726.3557843226. The cubic root of 22338439 is about 281.6334749975.

The spelling of 22338439 in words is "twenty-two million, three hundred thirty-eight thousand, four hundred thirty-nine".