111427932 has 144 divisors (see below), whose sum is σ = 344395520. Its totient is φ = 27371520.

The previous prime is 111427891. The next prime is 111427933. The reversal of 111427932 is 239724111.

It is a self number, because there is not a number n which added to its sum of digits gives 111427932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111427933) 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, 192828 + ... + 193404.

Almost surely, 2^111427932 is an apocalyptic number.

111427932 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 111427932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172197760).

111427932 is an abundant number, since it is smaller than the sum of its proper divisors (232967588).

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

111427932 is a wasteful number, since it uses less digits than its factorization.

111427932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 619 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 111427932 is about 10555.9429706682. The cubic root of 111427932 is about 481.2063579472.

The spelling of 111427932 in words is "one hundred eleven million, four hundred twenty-seven thousand, nine hundred thirty-two".