22844139 has 8 divisors (see below), whose sum is σ = 30512592. Its totient is φ = 15202560.

The previous prime is 22844123. The next prime is 22844147. The reversal of 22844139 is 93144822.

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

It is not a de Polignac number, because 22844139 - 2⁴ = 22844123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22844189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4642 + ... + 8199.

It is an arithmetic number, because the mean of its divisors is an integer number (3814074).

Almost surely, 2^22844139 is an apocalyptic number.

22844139 is a deficient number, since it is larger than the sum of its proper divisors (7668453).

22844139 is a wasteful number, since it uses less digits than its factorization.

22844139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13437.

The product of its digits is 13824, while the sum is 33.

The square root of 22844139 is about 4779.5542679208. The cubic root of 22844139 is about 283.7428531000.

The spelling of 22844139 in words is "twenty-two million, eight hundred forty-four thousand, one hundred thirty-nine".