111600432 has 60 divisors (see below), whose sum is σ = 313891864. Its totient is φ = 37013760.

The previous prime is 111600431. The next prime is 111600443. The reversal of 111600432 is 234006111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (111600431) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 28548 + ... + 32220.

Almost surely, 2^111600432 is an apocalyptic number.

111600432 is a gapful number since it is divisible by the number (12) 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 111600432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156945932).

111600432 is an abundant number, since it is smaller than the sum of its proper divisors (202291432).

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

111600432 is a wasteful number, since it uses less digits than its factorization.

111600432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3898 (or 3889 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 111600432 is about 10564.1105636017. The cubic root of 111600432 is about 481.4545461633.

Adding to 111600432 its reverse (234006111), we get a palindrome (345606543).

The spelling of 111600432 in words is "one hundred eleven million, six hundred thousand, four hundred thirty-two".