11994838 has 4 divisors (see below), whose sum is σ = 17992260. Its totient is φ = 5997418.

The previous prime is 11994803. The next prime is 11994839. The reversal of 11994838 is 83849911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83849911 = 6073 ⋅13807.

It is a super-2 number, since 2×11994838² = 287752277292488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11994794 and 11994803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11994839) by changing a digit.

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, 2998708 + ... + 2998711.

It is an arithmetic number, because the mean of its divisors is an integer number (4498065).

Almost surely, 2^11994838 is an apocalyptic number.

11994838 is a deficient number, since it is larger than the sum of its proper divisors (5997422).

11994838 is an equidigital number, since it uses as much as digits as its factorization.

11994838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997421.

The product of its digits is 62208, while the sum is 43.

The square root of 11994838 is about 3463.3564644720. The cubic root of 11994838 is about 228.9100159417.

The spelling of 11994838 in words is "eleven million, nine hundred ninety-four thousand, eight hundred thirty-eight".