13955638 has 8 divisors (see below), whose sum is σ = 21074400. Its totient is φ = 6930840.

The previous prime is 13955603. The next prime is 13955647. The reversal of 13955638 is 83655931.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13955638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23118 + ... + 23713.

It is an arithmetic number, because the mean of its divisors is an integer number (2634300).

Almost surely, 2^13955638 is an apocalyptic number.

13955638 is a deficient number, since it is larger than the sum of its proper divisors (7118762).

13955638 is a wasteful number, since it uses less digits than its factorization.

13955638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46982.

The product of its digits is 97200, while the sum is 40.

The square root of 13955638 is about 3735.7245615811. The cubic root of 13955638 is about 240.7593886509.

The spelling of 13955638 in words is "thirteen million, nine hundred fifty-five thousand, six hundred thirty-eight".