13478438 has 8 divisors (see below), whose sum is σ = 20549280. Its totient is φ = 6628680.

The previous prime is 13478431. The next prime is 13478447. The reversal of 13478438 is 83487431.

13478438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13478431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55118 + ... + 55361.

It is an arithmetic number, because the mean of its divisors is an integer number (2568660).

Almost surely, 2^13478438 is an apocalyptic number.

13478438 is a deficient number, since it is larger than the sum of its proper divisors (7070842).

13478438 is a wasteful number, since it uses less digits than its factorization.

13478438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110542.

The product of its digits is 64512, while the sum is 38.

The square root of 13478438 is about 3671.2992250701. The cubic root of 13478438 is about 237.9833215721.

The spelling of 13478438 in words is "thirteen million, four hundred seventy-eight thousand, four hundred thirty-eight".