13438359 has 16 divisors (see below), whose sum is σ = 21719040. Its totient is φ = 8144280.

The previous prime is 13438349. The next prime is 13438367. The reversal of 13438359 is 95383431.

It is not a de Polignac number, because 13438359 - 2⁴ = 13438343 is a prime.

It is a super-2 number, since 2×13438359² = 361178985225762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22327 + ... + 22920.

It is an arithmetic number, because the mean of its divisors is an integer number (1357440).

Almost surely, 2^13438359 is an apocalyptic number.

13438359 is a deficient number, since it is larger than the sum of its proper divisors (8280681).

13438359 is a wasteful number, since it uses less digits than its factorization.

13438359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45267 (or 45261 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 13438359 is about 3665.8367394089. The cubic root of 13438359 is about 237.7472011533.

The spelling of 13438359 in words is "thirteen million, four hundred thirty-eight thousand, three hundred fifty-nine".