11409982 has 4 divisors (see below), whose sum is σ = 17114976. Its totient is φ = 5704990.

The previous prime is 11409977. The next prime is 11409991. The reversal of 11409982 is 28990411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28990411 = 2081 ⋅13931.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2852494 + ... + 2852497.

It is an arithmetic number, because the mean of its divisors is an integer number (4278744).

Almost surely, 2^11409982 is an apocalyptic number.

11409982 is a deficient number, since it is larger than the sum of its proper divisors (5704994).

11409982 is an equidigital number, since it uses as much as digits as its factorization.

11409982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5704993.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 11409982 is about 3377.8664864082. The cubic root of 11409982 is about 225.1273813687.

The spelling of 11409982 in words is "eleven million, four hundred nine thousand, nine hundred eighty-two".