1166280 has 32 divisors (see below), whose sum is σ = 3499200. Its totient is φ = 310976.

The previous prime is 1166237. The next prime is 1166287. The reversal of 1166280 is 826611.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1166280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166287) 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, 4740 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (109350).

2^1166280 is an apocalyptic number.

1166280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1166280 is an abundant number, since it is smaller than the sum of its proper divisors (2332920).

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

1166280 is a wasteful number, since it uses less digits than its factorization.

1166280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733 (or 9729 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1166280 is about 1079.9444430155. The cubic root of 1166280 is about 105.2610285534.

The spelling of 1166280 in words is "one million, one hundred sixty-six thousand, two hundred eighty".