1180880 has 40 divisors (see below), whose sum is σ = 2845800. Its totient is φ = 455168.

The previous prime is 1180877. The next prime is 1180891. The reversal of 1180880 is 880811.

It can be written as a sum of positive squares in 4 ways, for example, as 274576 + 906304 = 524^2 + 952^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2066 + ... + 2574.

It is an arithmetic number, because the mean of its divisors is an integer number (71145).

2^1180880 is an apocalyptic number.

1180880 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 1180880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422900).

1180880 is an abundant number, since it is smaller than the sum of its proper divisors (1664920).

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

1180880 is a wasteful number, since it uses less digits than its factorization.

1180880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 1180880 is about 1086.6830264617. The cubic root of 1180880 is about 105.6984427891.

The spelling of 1180880 in words is "one million, one hundred eighty thousand, eight hundred eighty".