16118844 has 72 divisors (see below), whose sum is σ = 44432640. Its totient is φ = 4533984.

The previous prime is 16118833. The next prime is 16118891. The reversal of 16118844 is 44881161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46279 + ... + 46625.

It is an arithmetic number, because the mean of its divisors is an integer number (617120).

Almost surely, 2^16118844 is an apocalyptic number.

16118844 is a gapful number since it is divisible by the number (14) 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 16118844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22216320).

16118844 is an abundant number, since it is smaller than the sum of its proper divisors (28313796).

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

16118844 is a wasteful number, since it uses less digits than its factorization.

16118844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 438 counting only the distinct ones).

The product of its digits is 6144, while the sum is 33.

The square root of 16118844 is about 4014.8280162418. The cubic root of 16118844 is about 252.6065635227.

The spelling of 16118844 in words is "sixteen million, one hundred eighteen thousand, eight hundred forty-four".