13918536 has 48 divisors (see below), whose sum is σ = 38188800. Its totient is φ = 4578912.

The previous prime is 13918523. The next prime is 13918547. The reversal of 13918536 is 63581931.

It is a happy number.

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 13918536.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4465 + ... + 6911.

It is an arithmetic number, because the mean of its divisors is an integer number (795600).

Almost surely, 2^13918536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13918536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19094400).

13918536 is an abundant number, since it is smaller than the sum of its proper divisors (24270264).

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

13918536 is a wasteful number, since it uses less digits than its factorization.

13918536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538 (or 2531 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 13918536 is about 3730.7554194828. The cubic root of 13918536 is about 240.5458409657.

The spelling of 13918536 in words is "thirteen million, nine hundred eighteen thousand, five hundred thirty-six".