13938224 has 20 divisors (see below), whose sum is σ = 27070440. Its totient is φ = 6952320.

The previous prime is 13938209. The next prime is 13938227. The reversal of 13938224 is 42283931.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13938227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8339 + ... + 9869.

It is an arithmetic number, because the mean of its divisors is an integer number (1353522).

Almost surely, 2^13938224 is an apocalyptic number.

It is an amenable number.

13938224 is a deficient number, since it is larger than the sum of its proper divisors (13132216).

13938224 is a wasteful number, since it uses less digits than its factorization.

13938224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108 (or 2102 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 13938224 is about 3733.3930947598. The cubic root of 13938224 is about 240.6592062239.

The spelling of 13938224 in words is "thirteen million, nine hundred thirty-eight thousand, two hundred twenty-four".