111438360 has 192 divisors, whose sum is σ = 400308480. Its totient is φ = 26661120.

The previous prime is 111438343. The next prime is 111438367. The reversal of 111438360 is 63834111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111438367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 423589 + ... + 423851.

It is an arithmetic number, because the mean of its divisors is an integer number (2084940).

Almost surely, 2^111438360 is an apocalyptic number.

111438360 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 111438360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200154240).

111438360 is an abundant number, since it is smaller than the sum of its proper divisors (288870120).

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

111438360 is a wasteful number, since it uses less digits than its factorization.

111438360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 111438360 is about 10556.4368988783. The cubic root of 111438360 is about 481.2213687357.

It can be divided in two parts, 11143 and 8360, that added together give a triangular number (19503 = T₁₉₇).

The spelling of 111438360 in words is "one hundred eleven million, four hundred thirty-eight thousand, three hundred sixty".