1116720 has 160 divisors (see below), whose sum is σ = 4285440. Its totient is φ = 264960.

The previous prime is 1116701. The next prime is 1116743. The reversal of 1116720 is 276111.

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

It is a junction number, because it is equal to n+sod(n) for n = 1116693 and 1116702.

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, 23737 + ... + 23783.

It is an arithmetic number, because the mean of its divisors is an integer number (26784).

2^1116720 is an apocalyptic number.

1116720 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 1116720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2142720).

1116720 is an abundant number, since it is smaller than the sum of its proper divisors (3168720).

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

1116720 is a wasteful number, since it uses less digits than its factorization.

1116720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1116720 is about 1056.7497338538. The cubic root of 1116720 is about 103.7484056464.

The spelling of 1116720 in words is "one million, one hundred sixteen thousand, seven hundred twenty".