111918436 has 48 divisors (see below), whose sum is σ = 239016960. Its totient is φ = 44785440.

The previous prime is 111918427. The next prime is 111918449. The reversal of 111918436 is 634819111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36291 + ... + 39253.

It is an arithmetic number, because the mean of its divisors is an integer number (4979520).

Almost surely, 2^111918436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111918436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119508480).

111918436 is an abundant number, since it is smaller than the sum of its proper divisors (127098524).

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

111918436 is a wasteful number, since it uses less digits than its factorization.

111918436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064 (or 3062 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 111918436 is about 10579.1510056337. The cubic root of 111918436 is about 481.9114120119.

The spelling of 111918436 in words is "one hundred eleven million, nine hundred eighteen thousand, four hundred thirty-six".