13888282 has 8 divisors (see below), whose sum is σ = 20889396. Its totient is φ = 6925152.

The previous prime is 13888261. The next prime is 13888289. The reversal of 13888282 is 28288831.

It can be written as a sum of positive squares in 2 ways, for example, as 12397441 + 1490841 = 3521^2 + 1221^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13888289) 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, 8563 + ... + 10054.

Almost surely, 2^13888282 is an apocalyptic number.

13888282 is a deficient number, since it is larger than the sum of its proper divisors (7001114).

13888282 is a wasteful number, since it uses less digits than its factorization.

13888282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18992.

The product of its digits is 49152, while the sum is 40.

The square root of 13888282 is about 3726.6985389215. The cubic root of 13888282 is about 240.3714271926.

The spelling of 13888282 in words is "thirteen million, eight hundred eighty-eight thousand, two hundred eighty-two".