22444258 has 4 divisors (see below), whose sum is σ = 33666390. Its totient is φ = 11222128.

The previous prime is 22444243. The next prime is 22444259. The reversal of 22444258 is 85244422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19509889 + 2934369 = 4417^2 + 1713^2 .

It is not an unprimeable number, because it can be changed into a prime (22444259) 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 as a sum of consecutive naturals, namely, 5611063 + ... + 5611066.

Almost surely, 2^22444258 is an apocalyptic number.

22444258 is a deficient number, since it is larger than the sum of its proper divisors (11222132).

22444258 is a wasteful number, since it uses less digits than its factorization.

22444258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222131.

The product of its digits is 20480, while the sum is 31.

The square root of 22444258 is about 4737.5371238651. The cubic root of 22444258 is about 282.0774815178.

The spelling of 22444258 in words is "twenty-two million, four hundred forty-four thousand, two hundred fifty-eight".