11836642 has 4 divisors (see below), whose sum is σ = 17754966. Its totient is φ = 5918320.

The previous prime is 11836613. The next prime is 11836667. The reversal of 11836642 is 24663811.

It is a happy number.

11836642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9431041 + 2405601 = 3071^2 + 1551^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2959159 + ... + 2959162.

Almost surely, 2^11836642 is an apocalyptic number.

11836642 is a deficient number, since it is larger than the sum of its proper divisors (5918324).

11836642 is an equidigital number, since it uses as much as digits as its factorization.

11836642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918323.

The product of its digits is 6912, while the sum is 31.

The square root of 11836642 is about 3440.4421227511. The cubic root of 11836642 is about 227.8992193355.

The spelling of 11836642 in words is "eleven million, eight hundred thirty-six thousand, six hundred forty-two".