11838982 has 4 divisors (see below), whose sum is σ = 17758476. Its totient is φ = 5919490.

The previous prime is 11838979. The next prime is 11838991. The reversal of 11838982 is 28983811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28983811 = 479 ⋅60509.

It is a super-2 number, since 2×11838982² = 280322989592648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2959744 + ... + 2959747.

It is an arithmetic number, because the mean of its divisors is an integer number (4439619).

Almost surely, 2^11838982 is an apocalyptic number.

11838982 is a deficient number, since it is larger than the sum of its proper divisors (5919494).

11838982 is an equidigital number, since it uses as much as digits as its factorization.

11838982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919493.

The product of its digits is 27648, while the sum is 40.

The square root of 11838982 is about 3440.7821785170. The cubic root of 11838982 is about 227.9142362363.

The spelling of 11838982 in words is "eleven million, eight hundred thirty-eight thousand, nine hundred eighty-two".