18343344 has 40 divisors (see below), whose sum is σ = 47554992. Its totient is φ = 6092800.

The previous prime is 18343343. The next prime is 18343349. The reversal of 18343344 is 44334381.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18343343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18772 + ... + 19724.

Almost surely, 2^18343344 is an apocalyptic number.

It is an amenable number.

18343344 is an abundant number, since it is smaller than the sum of its proper divisors (29211648).

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

18343344 is a wasteful number, since it uses less digits than its factorization.

18343344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1359 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 18343344 is about 4282.9130273682. The cubic root of 18343344 is about 263.7299810356.

The spelling of 18343344 in words is "eighteen million, three hundred forty-three thousand, three hundred forty-four".