13918236 has 12 divisors (see below), whose sum is σ = 32475912. Its totient is φ = 4639408.

The previous prime is 13918217. The next prime is 13918237. The reversal of 13918236 is 63281931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13918197 and 13918206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13918237) 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, 579915 + ... + 579938.

It is an arithmetic number, because the mean of its divisors is an integer number (2706326).

Almost surely, 2^13918236 is an apocalyptic number.

It is an amenable number.

13918236 is an abundant number, since it is smaller than the sum of its proper divisors (18557676).

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

13918236 is a wasteful number, since it uses less digits than its factorization.

13918236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159860 (or 1159858 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 13918236 is about 3730.7152129317. The cubic root of 13918236 is about 240.5441127123.

The spelling of 13918236 in words is "thirteen million, nine hundred eighteen thousand, two hundred thirty-six".