11811426 has 32 divisors (see below), whose sum is σ = 27129600. Its totient is φ = 3390480.

The previous prime is 11811419. The next prime is 11811427. The reversal of 11811426 is 62411811.

It is a junction number, because it is equal to n+sod(n) for n = 11811396 and 11811405.

It is not an unprimeable number, because it can be changed into a prime (11811427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3456 + ... + 5963.

It is an arithmetic number, because the mean of its divisors is an integer number (847800).

Almost surely, 2^11811426 is an apocalyptic number.

11811426 is an abundant number, since it is smaller than the sum of its proper divisors (15318174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11811426 is a wasteful number, since it uses less digits than its factorization.

11811426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9454.

The product of its digits is 384, while the sum is 24.

The square root of 11811426 is about 3436.7755236559. The cubic root of 11811426 is about 227.7372704665.

The spelling of 11811426 in words is "eleven million, eight hundred eleven thousand, four hundred twenty-six".