18362368 has 26 divisors (see below), whose sum is σ = 36728444. Its totient is φ = 9179136.

The previous prime is 18362359. The next prime is 18362369. The reversal of 18362368 is 86326381.

It is not an unprimeable number, because it can be changed into a prime (18362369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1855 + ... + 6337.

Almost surely, 2^18362368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18362368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18364222).

18362368 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.

18362368 is an frugal number, since it uses more digits than its factorization.

18362368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507 (or 4485 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 18362368 is about 4285.1333701531. The cubic root of 18362368 is about 263.8211215551.

The spelling of 18362368 in words is "eighteen million, three hundred sixty-two thousand, three hundred sixty-eight".