112428 has 30 divisors (see below), whose sum is σ = 294756. Its totient is φ = 37368.

The previous prime is 112403. The next prime is 112429. The reversal of 112428 is 824211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 112428.

It is not an unprimeable number, because it can be changed into a prime (112429) by changing a digit.

112428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 151 + ... + 497.

2¹¹²⁴²⁸ is an apocalyptic number.

112428 is a gapful number since it is divisible by the number (18) 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 112428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147378).

112428 is an abundant number, since it is smaller than the sum of its proper divisors (182328).

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

112428 is a wasteful number, since it uses less digits than its factorization.

112428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 352 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 112428 is about 335.3028481835. The cubic root of 112428 is about 48.2641684790.

Adding to 112428 its reverse (824211), we get a palindrome (936639).

The spelling of 112428 in words is "one hundred twelve thousand, four hundred twenty-eight".