13964138 has 16 divisors (see below), whose sum is σ = 21980160. Its totient is φ = 6644400.

The previous prime is 13964113. The next prime is 13964147. The reversal of 13964138 is 83146931.

13964138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13964098 and 13964107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2423 + ... + 5813.

It is an arithmetic number, because the mean of its divisors is an integer number (1373760).

Almost surely, 2^13964138 is an apocalyptic number.

13964138 is a deficient number, since it is larger than the sum of its proper divisors (8016022).

13964138 is a wasteful number, since it uses less digits than its factorization.

13964138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493.

The product of its digits is 15552, while the sum is 35.

The square root of 13964138 is about 3736.8620525783. The cubic root of 13964138 is about 240.8082587315.

The spelling of 13964138 in words is "thirteen million, nine hundred sixty-four thousand, one hundred thirty-eight".