13363818 has 32 divisors (see below), whose sum is σ = 29190336. Its totient is φ = 4053888.

The previous prime is 13363817. The next prime is 13363837. The reversal of 13363818 is 81836331.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13363811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4521 + ... + 6867.

It is an arithmetic number, because the mean of its divisors is an integer number (912198).

Almost surely, 2^13363818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13363818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14595168).

13363818 is an abundant number, since it is smaller than the sum of its proper divisors (15826518).

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

13363818 is a wasteful number, since it uses less digits than its factorization.

13363818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438.

The product of its digits is 10368, while the sum is 33.

The square root of 13363818 is about 3655.6556183536. The cubic root of 13363818 is about 237.3068005905.

The spelling of 13363818 in words is "thirteen million, three hundred sixty-three thousand, eight hundred eighteen".