22408138 has 8 divisors (see below), whose sum is σ = 33671232. Its totient is φ = 11184396.

The previous prime is 22408109. The next prime is 22408151. The reversal of 22408138 is 83180422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8370 + ... + 10717.

It is an arithmetic number, because the mean of its divisors is an integer number (4208904).

Almost surely, 2^22408138 is an apocalyptic number.

22408138 is a deficient number, since it is larger than the sum of its proper divisors (11263094).

22408138 is a wasteful number, since it uses less digits than its factorization.

22408138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19676.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 22408138 is about 4733.7234815735. The cubic root of 22408138 is about 281.9260826000.

The spelling of 22408138 in words is "twenty-two million, four hundred eight thousand, one hundred thirty-eight".