22259138 has 8 divisors (see below), whose sum is σ = 36424080. Its totient is φ = 10117780.

The previous prime is 22259123. The next prime is 22259141. The reversal of 22259138 is 83195222.

It is a happy number.

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

It is a nialpdrome in base 12.

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, 505868 + ... + 505911.

It is an arithmetic number, because the mean of its divisors is an integer number (4553010).

Almost surely, 2^22259138 is an apocalyptic number.

22259138 is a deficient number, since it is larger than the sum of its proper divisors (14164942).

22259138 is a wasteful number, since it uses less digits than its factorization.

22259138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011792.

The product of its digits is 8640, while the sum is 32.

The square root of 22259138 is about 4717.9590926586. The cubic root of 22259138 is about 281.2998155053.

The spelling of 22259138 in words is "twenty-two million, two hundred fifty-nine thousand, one hundred thirty-eight".