11426 has 8 divisors (see below), whose sum is σ = 17820. Its totient is φ = 5488.

The previous prime is 11423. The next prime is 11437. The reversal of 11426 is 62411.

11426 = 4² + 5² + ... + 32².

It can be written as a sum of positive squares in 2 ways, for example, as 10201 + 1225 = 101^2 + 35^2 .

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

11426 is an undulating number in base 14.

It is a Curzon number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11426.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 11426.

It is not an unprimeable number, because it can be changed into a prime (11423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41 + ... + 156.

2¹¹⁴²⁶ is an apocalyptic number.

11426 is a deficient number, since it is larger than the sum of its proper divisors (6394).

11426 is a wasteful number, since it uses less digits than its factorization.

11426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228.

The product of its digits is 48, while the sum is 14.

The square root of 11426 is about 106.8924693325. The cubic root of 11426 is about 22.5232681103.

Adding to 11426 its reverse (62411), we get a palindrome (73837).

The spelling of 11426 in words is "eleven thousand, four hundred twenty-six".