22444018 has 8 divisors (see below), whose sum is σ = 33999660. Its totient is φ = 11110800.

The previous prime is 22444007. The next prime is 22444027. The reversal of 22444018 is 81044422.

It can be written as a sum of positive squares in 2 ways, for example, as 16426809 + 6017209 = 4053^2 + 2453^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22443983 and 22444001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55353 + ... + 55756.

Almost surely, 2^22444018 is an apocalyptic number.

22444018 is a deficient number, since it is larger than the sum of its proper divisors (11555642).

22444018 is a wasteful number, since it uses less digits than its factorization.

22444018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111212.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 22444018 is about 4737.5117941806. The cubic root of 22444018 is about 282.0764760812.

The spelling of 22444018 in words is "twenty-two million, four hundred forty-four thousand, eighteen".