11404013 has 4 divisors (see below), whose sum is σ = 11480700. Its totient is φ = 11327328.

The previous prime is 11404007. The next prime is 11404061. The reversal of 11404013 is 31040411.

It is a happy number.

11404013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6901129 + 4502884 = 2627^2 + 2122^2 .

It is a cyclic number.

It is not a de Polignac number, because 11404013 - 2¹² = 11399917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11404513) 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, 38120 + ... + 38417.

It is an arithmetic number, because the mean of its divisors is an integer number (2870175).

Almost surely, 2^11404013 is an apocalyptic number.

It is an amenable number.

11404013 is a deficient number, since it is larger than the sum of its proper divisors (76687).

11404013 is an equidigital number, since it uses as much as digits as its factorization.

11404013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76686.

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

The square root of 11404013 is about 3376.9828249489. The cubic root of 11404013 is about 225.0881169265.

Adding to 11404013 its reverse (31040411), we get a palindrome (42444424).

The spelling of 11404013 in words is "eleven million, four hundred four thousand, thirteen".