111886434 has 48 divisors (see below), whose sum is σ = 274266720. Its totient is φ = 33903360.

The previous prime is 111886427. The next prime is 111886477. The reversal of 111886434 is 434688111.

It is a happy number.

111886434 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 8 + 643 + 4 = 666.

It is a super-2 number, since 2×111886434² = 25037148226472712, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 5119 + ... + 15810.

It is an arithmetic number, because the mean of its divisors is an integer number (5713890).

Almost surely, 2^111886434 is an apocalyptic number.

111886434 is an abundant number, since it is smaller than the sum of its proper divisors (162380286).

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

111886434 is a wasteful number, since it uses less digits than its factorization.

111886434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20957 (or 20945 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 111886434 is about 10577.6383942731. The cubic root of 111886434 is about 481.8654749892.

The spelling of 111886434 in words is "one hundred eleven million, eight hundred eighty-six thousand, four hundred thirty-four".