13938634 has 8 divisors (see below), whose sum is σ = 20929860. Its totient is φ = 6962016.

The previous prime is 13938581. The next prime is 13938671. The reversal of 13938634 is 43683931.

It can be written as a sum of positive squares in 2 ways, for example, as 9591409 + 4347225 = 3097^2 + 2085^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13938593 and 13938602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829 + ... + 5344.

Almost surely, 2^13938634 is an apocalyptic number.

13938634 is a deficient number, since it is larger than the sum of its proper divisors (6991226).

13938634 is a wasteful number, since it uses less digits than its factorization.

13938634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7304.

The product of its digits is 46656, while the sum is 37.

The square root of 13938634 is about 3733.4480041913. The cubic root of 13938634 is about 240.6615659054.

The spelling of 13938634 in words is "thirteen million, nine hundred thirty-eight thousand, six hundred thirty-four".