111870396 has 72 divisors (see below), whose sum is σ = 319947264. Its totient is φ = 33896880.

The previous prime is 111870377. The next prime is 111870433. The reversal of 111870396 is 693078111.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 111870396.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5461 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (4443712).

Almost surely, 2^111870396 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 111870396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159973632).

111870396 is an abundant number, since it is smaller than the sum of its proper divisors (208076868).

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

111870396 is a wasteful number, since it uses less digits than its factorization.

111870396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10493 (or 10479 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 111870396 is about 10576.8802583749. The cubic root of 111870396 is about 481.8424500716.

The spelling of 111870396 in words is "one hundred eleven million, eight hundred seventy thousand, three hundred ninety-six".