111409844 has 96 divisors (see below), whose sum is σ = 256838400. Its totient is φ = 41057280.

The previous prime is 111409801. The next prime is 111409873. The reversal of 111409844 is 448904111.

It is a self number, because there is not a number n which added to its sum of digits gives 111409844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615434 + ... + 615614.

It is an arithmetic number, because the mean of its divisors is an integer number (2675400).

Almost surely, 2^111409844 is an apocalyptic number.

111409844 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 111409844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128419200).

111409844 is an abundant number, since it is smaller than the sum of its proper divisors (145428556).

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

111409844 is a wasteful number, since it uses less digits than its factorization.

111409844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 111409844 is about 10555.0861673413. The cubic root of 111409844 is about 481.1803186006.

The spelling of 111409844 in words is "one hundred eleven million, four hundred nine thousand, eight hundred forty-four".