1159980 has 24 divisors (see below), whose sum is σ = 3248112. Its totient is φ = 309312.

The previous prime is 1159973. The next prime is 1159981. The reversal of 1159980 is 899511.

It is not an unprimeable number, because it can be changed into a prime (1159981) 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, 9607 + ... + 9726.

It is an arithmetic number, because the mean of its divisors is an integer number (135338).

2^1159980 is an apocalyptic number.

1159980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1159980 is an abundant number, since it is smaller than the sum of its proper divisors (2088132).

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

1159980 is a wasteful number, since it uses less digits than its factorization.

1159980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19345 (or 19343 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 1159980 is about 1077.0236766200. The cubic root of 1159980 is about 105.0711535857.

The spelling of 1159980 in words is "one million, one hundred fifty-nine thousand, nine hundred eighty".