18360244 has 12 divisors (see below), whose sum is σ = 36720544. Its totient is φ = 7868664.

The previous prime is 18360197. The next prime is 18360253. The reversal of 18360244 is 44206381.

18360244 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 655723 = 18360244 / (1 + 8 + 3 + 6 + 0 + 2 + 4 + 4).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 327834 + ... + 327889.

Almost surely, 2^18360244 is an apocalyptic number.

18360244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18360244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18360244 is a wasteful number, since it uses less digits than its factorization.

18360244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655734 (or 655732 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 18360244 is about 4284.8855293928. The cubic root of 18360244 is about 263.8109489806.

The spelling of 18360244 in words is "eighteen million, three hundred sixty thousand, two hundred forty-four".