13818276 has 30 divisors (see below), whose sum is σ = 36124550. Its totient is φ = 4605984.

The previous prime is 13818253. The next prime is 13818289. The reversal of 13818276 is 67281831.

13818276 is a `hidden beast` number, since 1 + 381 + 8 + 276 = 666.

13818276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12320100 + 1498176 = 3510^2 + 1224^2 .

It is a super-2 number, since 2×13818276² = 381889503224352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13818276.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 21001 + ... + 21648.

Almost surely, 2^13818276 is an apocalyptic number.

It is an amenable number.

13818276 is an abundant number, since it is smaller than the sum of its proper divisors (22306274).

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

13818276 is a wasteful number, since it uses less digits than its factorization.

13818276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42665 (or 42654 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 13818276 is about 3717.2941772208. The cubic root of 13818276 is about 239.9668704270.

The spelling of 13818276 in words is "thirteen million, eight hundred eighteen thousand, two hundred seventy-six".