1120880 has 20 divisors (see below), whose sum is σ = 2606232. Its totient is φ = 448320.

The previous prime is 1120871. The next prime is 1120883. The reversal of 1120880 is 880211.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6926 + ... + 7085.

2^1120880 is an apocalyptic number.

1120880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120880 is an abundant number, since it is smaller than the sum of its proper divisors (1485352).

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

1120880 is a wasteful number, since it uses less digits than its factorization.

1120880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14024 (or 14018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1120880 is about 1058.7162037109. The cubic root of 1120880 is about 103.8770736953.

The spelling of 1120880 in words is "one million, one hundred twenty thousand, eight hundred eighty".