11381426 has 32 divisors (see below), whose sum is σ = 20390400. Its totient is φ = 4760448.

The previous prime is 11381423. The next prime is 11381431. The reversal of 11381426 is 62418311.

It is a junction number, because it is equal to n+sod(n) for n = 11381395 and 11381404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381423) 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 15 ways as a sum of consecutive naturals, for example, 32066 + ... + 32418.

It is an arithmetic number, because the mean of its divisors is an integer number (637200).

Almost surely, 2^11381426 is an apocalyptic number.

11381426 is a deficient number, since it is larger than the sum of its proper divisors (9008974).

11381426 is an equidigital number, since it uses as much as digits as its factorization.

11381426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 409 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 11381426 is about 3373.6369099238. The cubic root of 11381426 is about 224.9394141402.

Adding to 11381426 its reverse (62418311), we get a palindrome (73799737).

The spelling of 11381426 in words is "eleven million, three hundred eighty-one thousand, four hundred twenty-six".