1112800 has 72 divisors (see below), whose sum is σ = 2952936. Its totient is φ = 407040.

The previous prime is 1112789. The next prime is 1112821. The reversal of 1112800 is 82111.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10347 + ... + 10453.

It is an arithmetic number, because the mean of its divisors is an integer number (41013).

2^1112800 is an apocalyptic number.

1112800 is a gapful number since it is divisible by the number (10) 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 1112800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1476468).

1112800 is an abundant number, since it is smaller than the sum of its proper divisors (1840136).

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

1112800 is a wasteful number, since it uses less digits than its factorization.

1112800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1112800 is about 1054.8933595392. The cubic root of 1112800 is about 103.6268680034.

Adding to 1112800 its reverse (82111), we get a palindrome (1194911).

The spelling of 1112800 in words is "one million, one hundred twelve thousand, eight hundred".