11886540 has 24 divisors (see below), whose sum is σ = 33282480. Its totient is φ = 3169728.

The previous prime is 11886529. The next prime is 11886557. The reversal of 11886540 is 4568811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98995 + ... + 99114.

It is an arithmetic number, because the mean of its divisors is an integer number (1386770).

Almost surely, 2^11886540 is an apocalyptic number.

11886540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11886540 is an abundant number, since it is smaller than the sum of its proper divisors (21395940).

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

11886540 is a wasteful number, since it uses less digits than its factorization.

11886540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198121 (or 198119 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 11886540 is about 3447.6861806145. The cubic root of 11886540 is about 228.2190108554.

The spelling of 11886540 in words is "eleven million, eight hundred eighty-six thousand, five hundred forty".