1112720 has 40 divisors (see below), whose sum is σ = 2958144. Its totient is φ = 381312.

The previous prime is 1112707. The next prime is 1112723. The reversal of 1112720 is 272111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1112695 and 1112704.

It is not an unprimeable number, because it can be changed into a prime (1112723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434 + ... + 1553.

2^1112720 is an apocalyptic number.

1112720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112720 is an abundant number, since it is smaller than the sum of its proper divisors (1845424).

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

1112720 is a wasteful number, since it uses less digits than its factorization.

1112720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007 (or 2001 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1112720 is about 1054.8554403329. The cubic root of 1112720 is about 103.6243846736.

Adding to 1112720 its reverse (272111), we get a palindrome (1384831).

The spelling of 1112720 in words is "one million, one hundred twelve thousand, seven hundred twenty".