13869224 has 8 divisors (see below), whose sum is σ = 26004810. Its totient is φ = 6934608.

The previous prime is 13869209. The next prime is 13869227. The reversal of 13869224 is 42296831.

It can be written as a sum of positive squares in only one way, i.e., 9796900 + 4072324 = 3130^2 + 2018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13869227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 866819 + ... + 866834.

Almost surely, 2^13869224 is an apocalyptic number.

It is an amenable number.

13869224 is a deficient number, since it is larger than the sum of its proper divisors (12135586).

13869224 is a wasteful number, since it uses less digits than its factorization.

13869224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733659 (or 1733655 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 13869224 is about 3724.1407062569. The cubic root of 13869224 is about 240.2614280902.

The spelling of 13869224 in words is "thirteen million, eight hundred sixty-nine thousand, two hundred twenty-four".