1112280 has 128 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 253440.

The previous prime is 1112273. The next prime is 1112291. The reversal of 1112280 is 822111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35865 + ... + 35895.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2^1112280 is an apocalyptic number.

1112280 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 1112280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935360).

1112280 is an abundant number, since it is smaller than the sum of its proper divisors (2758440).

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

1112280 is a wasteful number, since it uses less digits than its factorization.

1112280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1112280 is about 1054.6468603281. The cubic root of 1112280 is about 103.6107242318.

Adding to 1112280 its reverse (822111), we get a palindrome (1934391).

The spelling of 1112280 in words is "one million, one hundred twelve thousand, two hundred eighty".