13938425 has 6 divisors (see below), whose sum is σ = 17283678. Its totient is φ = 11150720.

The previous prime is 13938409. The next prime is 13938451. The reversal of 13938425 is 52483931.

It can be written as a sum of positive squares in 3 ways, for example, as 3136 + 13935289 = 56^2 + 3733^2 .

It is not a de Polignac number, because 13938425 - 2⁴ = 13938409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278744 + ... + 278793.

It is an arithmetic number, because the mean of its divisors is an integer number (2880613).

Almost surely, 2^13938425 is an apocalyptic number.

It is an amenable number.

13938425 is a deficient number, since it is larger than the sum of its proper divisors (3345253).

13938425 is an equidigital number, since it uses as much as digits as its factorization.

13938425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557547 (or 557542 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 13938425 is about 3733.4200138747. The cubic root of 13938425 is about 240.6603630491.

The spelling of 13938425 in words is "thirteen million, nine hundred thirty-eight thousand, four hundred twenty-five".