11982188 has 12 divisors (see below), whose sum is σ = 21075600. Its totient is φ = 5960592.

The previous prime is 11982163. The next prime is 11982197. The reversal of 11982188 is 88128911.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6731 + ... + 8322.

It is an arithmetic number, because the mean of its divisors is an integer number (1756300).

Almost surely, 2^11982188 is an apocalyptic number.

It is an amenable number.

11982188 is a deficient number, since it is larger than the sum of its proper divisors (9093412).

11982188 is a wasteful number, since it uses less digits than its factorization.

11982188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15256 (or 15254 counting only the distinct ones).

The product of its digits is 9216, while the sum is 38.

The square root of 11982188 is about 3461.5297196471. The cubic root of 11982188 is about 228.8295165842.

The spelling of 11982188 in words is "eleven million, nine hundred eighty-two thousand, one hundred eighty-eight".