13938906 has 8 divisors (see below), whose sum is σ = 27877824. Its totient is φ = 4646300.

The previous prime is 13938857. The next prime is 13938907. The reversal of 13938906 is 60983931.

13938906 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

13938906 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13938907) 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, 1161570 + ... + 1161581.

It is an arithmetic number, because the mean of its divisors is an integer number (3484728).

Almost surely, 2^13938906 is an apocalyptic number.

13938906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13938906 is a wasteful number, since it uses less digits than its factorization.

13938906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323156.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 13938906 is about 3733.4844314661. The cubic root of 13938906 is about 240.6631313271.

The spelling of 13938906 in words is "thirteen million, nine hundred thirty-eight thousand, nine hundred six".