11326638 has 8 divisors (see below), whose sum is σ = 22653288. Its totient is φ = 3775544.

The previous prime is 11326633. The next prime is 11326657. The reversal of 11326638 is 83662311.

It is a sphenic number, since it is the product of 3 distinct primes.

11326638 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11326633) 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 in 3 ways as a sum of consecutive naturals, for example, 943881 + ... + 943892.

It is an arithmetic number, because the mean of its divisors is an integer number (2831661).

Almost surely, 2^11326638 is an apocalyptic number.

11326638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11326638 is a wasteful number, since it uses less digits than its factorization.

11326638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887778.

The product of its digits is 5184, while the sum is 30.

The square root of 11326638 is about 3365.5070940350. The cubic root of 11326638 is about 224.5778950367.

Adding to 11326638 its reverse (83662311), we get a palindrome (94988949).

The spelling of 11326638 in words is "eleven million, three hundred twenty-six thousand, six hundred thirty-eight".