1171880 has 16 divisors (see below), whose sum is σ = 2636820. Its totient is φ = 468736.

The previous prime is 1171867. The next prime is 1171921. The reversal of 1171880 is 881711.

It can be written as a sum of positive squares in 2 ways, for example, as 1170724 + 1156 = 1082^2 + 34^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14609 + ... + 14688.

2^1171880 is an apocalyptic number.

1171880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1171880 is an abundant number, since it is smaller than the sum of its proper divisors (1464940).

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

1171880 is a wasteful number, since it uses less digits than its factorization.

1171880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29308 (or 29304 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 26.

The square root of 1171880 is about 1082.5340641292. The cubic root of 1171880 is about 105.4292331061.

The spelling of 1171880 in words is "one million, one hundred seventy-one thousand, eight hundred eighty".