13336405 has 8 divisors (see below), whose sum is σ = 16023384. Its totient is φ = 10656000.

The previous prime is 13336399. The next prime is 13336429. The reversal of 13336405 is 50463331.

It can be written as a sum of positive squares in 4 ways, for example, as 79524 + 13256881 = 282^2 + 3641^2 .

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

It is not a de Polignac number, because 13336405 - 2⁷ = 13336277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13336405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6505 + ... + 8305.

It is an arithmetic number, because the mean of its divisors is an integer number (2002923).

Almost surely, 2^13336405 is an apocalyptic number.

It is an amenable number.

13336405 is a deficient number, since it is larger than the sum of its proper divisors (2686979).

13336405 is a wasteful number, since it uses less digits than its factorization.

13336405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 13336405 is about 3651.9042977603. The cubic root of 13336405 is about 237.1444282189.

Adding to 13336405 its reverse (50463331), we get a palindrome (63799736).

The spelling of 13336405 in words is "thirteen million, three hundred thirty-six thousand, four hundred five".