1185808 has 20 divisors (see below), whose sum is σ = 2474668. Its totient is φ = 547200.

The previous prime is 1185797. The next prime is 1185817. The reversal of 1185808 is 8085811.

It is a happy number.

1185808 is nontrivially palindromic in base 12.

It can be written as a sum of positive squares in 2 ways, for example, as 589824 + 595984 = 768^2 + 772^2 .

It is a super-2 number, since 2×1185808² = 2812281225728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1185808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2643 + ... + 3058.

2^1185808 is an apocalyptic number.

It is an amenable number.

1185808 is an abundant number, since it is smaller than the sum of its proper divisors (1288860).

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

1185808 is a wasteful number, since it uses less digits than its factorization.

1185808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722 (or 5716 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 1185808 is about 1088.9481163031. The cubic root of 1185808 is about 105.8452708684.

The spelling of 1185808 in words is "one million, one hundred eighty-five thousand, eight hundred eight".