22139230 has 8 divisors (see below), whose sum is σ = 39850632. Its totient is φ = 8855688.

The previous prime is 22139203. The next prime is 22139231. The reversal of 22139230 is 3293122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22139231) by changing a digit.

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, 1106952 + ... + 1106971.

It is an arithmetic number, because the mean of its divisors is an integer number (4981329).

Almost surely, 2^22139230 is an apocalyptic number.

22139230 is a deficient number, since it is larger than the sum of its proper divisors (17711402).

22139230 is a wasteful number, since it uses less digits than its factorization.

22139230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213930.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 22139230 is about 4705.2343193512. The cubic root of 22139230 is about 280.7937934062.

The spelling of 22139230 in words is "twenty-two million, one hundred thirty-nine thousand, two hundred thirty".