13438934 has 8 divisors (see below), whose sum is σ = 20808768. Its totient is φ = 6502680.

The previous prime is 13438933. The next prime is 13438967. The reversal of 13438934 is 43983431.

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 = 13438894 and 13438903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13438933) 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, 108317 + ... + 108440.

It is an arithmetic number, because the mean of its divisors is an integer number (2601096).

Almost surely, 2^13438934 is an apocalyptic number.

13438934 is a deficient number, since it is larger than the sum of its proper divisors (7369834).

13438934 is a wasteful number, since it uses less digits than its factorization.

13438934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216790.

The product of its digits is 31104, while the sum is 35.

The square root of 13438934 is about 3665.9151654123. The cubic root of 13438934 is about 237.7505920110.

The spelling of 13438934 in words is "thirteen million, four hundred thirty-eight thousand, nine hundred thirty-four".