13938407 has 8 divisors (see below), whose sum is σ = 16300416. Its totient is φ = 11669112.

The previous prime is 13938403. The next prime is 13938409. The reversal of 13938407 is 70483931.

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

It is not a de Polignac number, because 13938407 - 2² = 13938403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13938403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22853 + ... + 23454.

It is an arithmetic number, because the mean of its divisors is an integer number (2037552).

Almost surely, 2^13938407 is an apocalyptic number.

13938407 is a deficient number, since it is larger than the sum of its proper divisors (2362009).

13938407 is an equidigital number, since it uses as much as digits as its factorization.

13938407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46357.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 13938407 is about 3733.4176032156. The cubic root of 13938407 is about 240.6602594533.

The spelling of 13938407 in words is "thirteen million, nine hundred thirty-eight thousand, four hundred seven".