22138674 has 8 divisors (see below), whose sum is σ = 44277360. Its totient is φ = 7379556.

The previous prime is 22138651. The next prime is 22138733. The reversal of 22138674 is 47683122.

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

22138674 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 1844884 + ... + 1844895.

It is an arithmetic number, because the mean of its divisors is an integer number (5534670).

Almost surely, 2^22138674 is an apocalyptic number.

22138674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22138674 is a wasteful number, since it uses less digits than its factorization.

22138674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689784.

The product of its digits is 16128, while the sum is 33.

The square root of 22138674 is about 4705.1752358440. The cubic root of 22138674 is about 280.7914427876.

The spelling of 22138674 in words is "twenty-two million, one hundred thirty-eight thousand, six hundred seventy-four".