18982336 has 56 divisors (see below), whose sum is σ = 40599360. Its totient is φ = 8773632.

The previous prime is 18982331. The next prime is 18982339. The reversal of 18982336 is 63328981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18982331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79305 + ... + 79543.

Almost surely, 2^18982336 is an apocalyptic number.

18982336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18982336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20299680).

18982336 is an abundant number, since it is smaller than the sum of its proper divisors (21617024).

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

18982336 is a wasteful number, since it uses less digits than its factorization.

18982336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 331 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 18982336 is about 4356.8722726286. The cubic root of 18982336 is about 266.7574468704.

The spelling of 18982336 in words is "eighteen million, nine hundred eighty-two thousand, three hundred thirty-six".