18334736 has 40 divisors (see below), whose sum is σ = 40949760. Its totient is φ = 7789824.

The previous prime is 18334711. The next prime is 18334741. The reversal of 18334736 is 63743381.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18334696 and 18334705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13580 + ... + 14868.

It is an arithmetic number, because the mean of its divisors is an integer number (1023744).

Almost surely, 2^18334736 is an apocalyptic number.

18334736 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 18334736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20474880).

18334736 is an abundant number, since it is smaller than the sum of its proper divisors (22615024).

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

18334736 is a wasteful number, since it uses less digits than its factorization.

18334736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431 (or 1425 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 18334736 is about 4281.9079859334. The cubic root of 18334736 is about 263.6887209673.

The spelling of 18334736 in words is "eighteen million, three hundred thirty-four thousand, seven hundred thirty-six".