1191480 has 32 divisors (see below), whose sum is σ = 3574800. Its totient is φ = 317696.

The previous prime is 1191457. The next prime is 1191481. The reversal of 1191480 is 841911.

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 1191480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1191481) 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, 4845 + ... + 5084.

2^1191480 is an apocalyptic number.

1191480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1191480 is an abundant number, since it is smaller than the sum of its proper divisors (2383320).

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

1191480 is a wasteful number, since it uses less digits than its factorization.

1191480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9943 (or 9939 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1191480 is about 1091.5493575647. The cubic root of 1191480 is about 106.0137634911.

The spelling of 1191480 in words is "one million, one hundred ninety-one thousand, four hundred eighty".