18224441 has 16 divisors (see below), whose sum is σ = 19958400. Its totient is φ = 16587648.

The previous prime is 18224419. The next prime is 18224443. The reversal of 18224441 is 14442281.

It is a cyclic number.

It is not a de Polignac number, because 18224441 - 2¹⁰ = 18223417 is a prime.

It is a super-3 number, since 3×18224441³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18224441.

It is not an unprimeable number, because it can be changed into a prime (18224443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59210 + ... + 59516.

It is an arithmetic number, because the mean of its divisors is an integer number (1247400).

Almost surely, 2^18224441 is an apocalyptic number.

It is an amenable number.

18224441 is a deficient number, since it is larger than the sum of its proper divisors (1733959).

18224441 is a wasteful number, since it uses less digits than its factorization.

18224441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448.

The product of its digits is 2048, while the sum is 26.

The square root of 18224441 is about 4269.0093698656. The cubic root of 18224441 is about 263.1589058340.

The spelling of 18224441 in words is "eighteen million, two hundred twenty-four thousand, four hundred forty-one".