13918736 has 40 divisors (see below), whose sum is σ = 29544984. Its totient is φ = 6312960.

The previous prime is 13918711. The next prime is 13918741. The reversal of 13918736 is 63781931.

It can be written as a sum of positive squares in 4 ways, for example, as 640000 + 13278736 = 800^2 + 3644^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13918736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12140 + ... + 13236.

Almost surely, 2^13918736 is an apocalyptic number.

13918736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13918736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14772492).

13918736 is an abundant number, since it is smaller than the sum of its proper divisors (15626248).

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

13918736 is a wasteful number, since it uses less digits than its factorization.

13918736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1173 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 13918736 is about 3730.7822236094. The cubic root of 13918736 is about 240.5469931208.

The spelling of 13918736 in words is "thirteen million, nine hundred eighteen thousand, seven hundred thirty-six".