1189880 has 32 divisors (see below), whose sum is σ = 2708640. Its totient is φ = 470400.

The previous prime is 1189879. The next prime is 1189891. The reversal of 1189880 is 889811.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1189880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5942 + ... + 6138.

It is an arithmetic number, because the mean of its divisors is an integer number (84645).

2^1189880 is an apocalyptic number.

1189880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1189880 is an abundant number, since it is smaller than the sum of its proper divisors (1518760).

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

1189880 is a wasteful number, since it uses less digits than its factorization.

1189880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 35.

The square root of 1189880 is about 1090.8162081671. The cubic root of 1189880 is about 105.9662880810.

The spelling of 1189880 in words is "one million, one hundred eighty-nine thousand, eight hundred eighty".