18344896 has 56 divisors (see below), whose sum is σ = 38299136. Its totient is φ = 8709120.

The previous prime is 18344891. The next prime is 18344897. The reversal of 18344896 is 69844381.

It is a super-3 number, since 3×18344896³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18344891) 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, 144385 + ... + 144511.

Almost surely, 2^18344896 is an apocalyptic number.

18344896 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 18344896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19149568).

18344896 is an abundant number, since it is smaller than the sum of its proper divisors (19954240).

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

18344896 is a wasteful number, since it uses less digits than its factorization.

18344896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 227 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 18344896 is about 4283.0942086300. The cubic root of 18344896 is about 263.7374187450.

The spelling of 18344896 in words is "eighteen million, three hundred forty-four thousand, eight hundred ninety-six".