112189428 has 48 divisors (see below), whose sum is σ = 313239360. Its totient is φ = 34519392.

The previous prime is 112189397. The next prime is 112189447. The reversal of 112189428 is 824981211.

It is a happy number.

112189428 is a `hidden beast` number, since 11 + 218 + 9 + 428 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 112189392 and 112189401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38550 + ... + 41357.

It is an arithmetic number, because the mean of its divisors is an integer number (6525820).

Almost surely, 2^112189428 is an apocalyptic number.

112189428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

112189428 is an abundant number, since it is smaller than the sum of its proper divisors (201049932).

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

112189428 is a wasteful number, since it uses less digits than its factorization.

112189428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79933 (or 79925 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 112189428 is about 10591.9510950533. The cubic root of 112189428 is about 482.3000547876.

The spelling of 112189428 in words is "one hundred twelve million, one hundred eighty-nine thousand, four hundred twenty-eight".