22144386 has 32 divisors (see below), whose sum is σ = 50860800. Its totient is φ = 6356880.

The previous prime is 22144361. The next prime is 22144391. The reversal of 22144386 is 68344122.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7576 + ... + 10083.

It is an arithmetic number, because the mean of its divisors is an integer number (1589400).

Almost surely, 2^22144386 is an apocalyptic number.

22144386 is an abundant number, since it is smaller than the sum of its proper divisors (28716414).

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

22144386 is a wasteful number, since it uses less digits than its factorization.

22144386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17694.

The product of its digits is 9216, while the sum is 30.

The square root of 22144386 is about 4705.7821879046. The cubic root of 22144386 is about 280.8155897141.

The spelling of 22144386 in words is "twenty-two million, one hundred forty-four thousand, three hundred eighty-six".