22441018 has 8 divisors (see below), whose sum is σ = 34571412. Its totient is φ = 10917216.

The previous prime is 22440991. The next prime is 22441057. The reversal of 22441018 is 81014422.

It can be written as a sum of positive squares in 2 ways, for example, as 22439169 + 1849 = 4737^2 + 43^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22441018.

It is an unprimeable number.

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, 151555 + ... + 151702.

Almost surely, 2^22441018 is an apocalyptic number.

22441018 is a deficient number, since it is larger than the sum of its proper divisors (12130394).

22441018 is a wasteful number, since it uses less digits than its factorization.

22441018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303296.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 22441018 is about 4737.1951616964. The cubic root of 22441018 is about 282.0639075186.

The spelling of 22441018 in words is "twenty-two million, four hundred forty-one thousand, eighteen".