11986040 has 32 divisors (see below), whose sum is σ = 29421360. Its totient is φ = 4358400.

The previous prime is 11985997. The next prime is 11986043. The reversal of 11986040 is 4068911.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11985994 and 11986012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11986043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13181 + ... + 14060.

Almost surely, 2^11986040 is an apocalyptic number.

11986040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11986040 is an abundant number, since it is smaller than the sum of its proper divisors (17435320).

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

11986040 is a wasteful number, since it uses less digits than its factorization.

11986040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27263 (or 27259 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 11986040 is about 3462.0860763418. The cubic root of 11986040 is about 228.8540351129.

The spelling of 11986040 in words is "eleven million, nine hundred eighty-six thousand, forty".