13368399 has 16 divisors (see below), whose sum is σ = 19899264. Its totient is φ = 7912800.

The previous prime is 13368389. The next prime is 13368413. The reversal of 13368399 is 99386331.

It is not a de Polignac number, because 13368399 - 2¹² = 13364303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13368399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13368319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3292 + ... + 6129.

It is an arithmetic number, because the mean of its divisors is an integer number (1243704).

Almost surely, 2^13368399 is an apocalyptic number.

13368399 is a deficient number, since it is larger than the sum of its proper divisors (6530865).

13368399 is a wasteful number, since it uses less digits than its factorization.

13368399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9478.

The product of its digits is 104976, while the sum is 42.

The square root of 13368399 is about 3656.2821280640. The cubic root of 13368399 is about 237.3339130585. Note that the first 3 decimals are identical.

The spelling of 13368399 in words is "thirteen million, three hundred sixty-eight thousand, three hundred ninety-nine".