1080720 has 120 divisors (see below), whose sum is σ = 3868800. Its totient is φ = 269568.

The previous prime is 1080713. The next prime is 1080749. The reversal of 1080720 is 270801.

It is a tau number, because it is divible by the number of its divisors (120).

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 = 1080693 and 1080702.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13641 + ... + 13719.

It is an arithmetic number, because the mean of its divisors is an integer number (32240).

2^1080720 is an apocalyptic number.

1080720 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 1080720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1934400).

1080720 is an abundant number, since it is smaller than the sum of its proper divisors (2788080).

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

1080720 is a wasteful number, since it uses less digits than its factorization.

1080720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 1080720 is about 1039.5768369871. The cubic root of 1080720 is about 102.6213514152.

The spelling of 1080720 in words is "one million, eighty thousand, seven hundred twenty".