13074399 has 24 divisors (see below), whose sum is σ = 20968080. Its totient is φ = 8004096.

The previous prime is 13074379. The next prime is 13074403. The reversal of 13074399 is 99347031.

It is not a de Polignac number, because 13074399 - 2⁹ = 13073887 is a prime.

It is a super-2 number, since 2×13074399² = 341879818422402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13074379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67647 + ... + 67839.

It is an arithmetic number, because the mean of its divisors is an integer number (873670).

Almost surely, 2^13074399 is an apocalyptic number.

13074399 is a deficient number, since it is larger than the sum of its proper divisors (7893681).

13074399 is an equidigital number, since it uses as much as digits as its factorization.

13074399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 13074399 is about 3615.8538410727. The cubic root of 13074399 is about 235.5811720671.

It can be divided in two parts, 130 and 74399, that added together give a square (74529 = 273²).

The spelling of 13074399 in words is "thirteen million, seventy-four thousand, three hundred ninety-nine".