111390240 has 96 divisors (see below), whose sum is σ = 377891136. Its totient is φ = 27417600.

The previous prime is 111390229. The next prime is 111390263. The reversal of 111390240 is 42093111.

It is a tau number, because it is divible by the number of its divisors (96).

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, 2686 + ... + 15165.

It is an arithmetic number, because the mean of its divisors is an integer number (3936366).

Almost surely, 2^111390240 is an apocalyptic number.

111390240 is a gapful number since it is divisible by the number (10) 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 111390240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188945568).

111390240 is an abundant number, since it is smaller than the sum of its proper divisors (266500896).

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

111390240 is a wasteful number, since it uses less digits than its factorization.

111390240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882 (or 17874 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 111390240 is about 10554.1574746637. The cubic root of 111390240 is about 481.1520936492.

The spelling of 111390240 in words is "one hundred eleven million, three hundred ninety thousand, two hundred forty".