111839382 has 48 divisors (see below), whose sum is σ = 256943232. Its totient is φ = 35095680.

The previous prime is 111839369. The next prime is 111839407. The reversal of 111839382 is 283938111.

It is a super-2 number, since 2×111839382² = 25016094732283848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17938 + ... + 23354.

It is an arithmetic number, because the mean of its divisors is an integer number (5352984).

Almost surely, 2^111839382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111839382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128471616).

111839382 is an abundant number, since it is smaller than the sum of its proper divisors (145103850).

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

111839382 is a wasteful number, since it uses less digits than its factorization.

111839382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493 (or 5490 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 111839382 is about 10575.4140344480. The cubic root of 111839382 is about 481.7979186512.

It can be divided in two parts, 11 and 1839382, that multiplied together give a palindrome (20233202).

The spelling of 111839382 in words is "one hundred eleven million, eight hundred thirty-nine thousand, three hundred eighty-two".