13393449 has 12 divisors (see below), whose sum is σ = 19758336. Its totient is φ = 8738712.

The previous prime is 13393441. The next prime is 13393453. The reversal of 13393449 is 94439331.

13393449 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13393449 - 2³ = 13393441 is a prime.

It is a super-2 number, since 2×13393449² = 358768952231202, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13393441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15409 + ... + 16254.

It is an arithmetic number, because the mean of its divisors is an integer number (1646528).

Almost surely, 2^13393449 is an apocalyptic number.

It is an amenable number.

13393449 is a deficient number, since it is larger than the sum of its proper divisors (6364887).

13393449 is a wasteful number, since it uses less digits than its factorization.

13393449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31716 (or 31713 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 13393449 is about 3659.7061357437. The cubic root of 13393449 is about 237.4820610643.

The spelling of 13393449 in words is "thirteen million, three hundred ninety-three thousand, four hundred forty-nine".