13773568 has 36 divisors (see below), whose sum is σ = 27741168. Its totient is φ = 6824960.

The previous prime is 13773563. The next prime is 13773589. The reversal of 13773568 is 86537731.

It is a super-2 number, since 2×13773568² = 379422350901248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13773568.

It is not an unprimeable number, because it can be changed into a prime (13773563) 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, 44133 + ... + 44443.

It is an arithmetic number, because the mean of its divisors is an integer number (770588).

Almost surely, 2^13773568 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 13773568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13870584).

13773568 is an abundant number, since it is smaller than the sum of its proper divisors (13967600).

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

13773568 is an equidigital number, since it uses as much as digits as its factorization.

13773568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 486 counting only the distinct ones).

The product of its digits is 105840, while the sum is 40.

The square root of 13773568 is about 3711.2757914227. The cubic root of 13773568 is about 239.7077925208.

It can be divided in two parts, 13773 and 568, that added together give a palindrome (14341).

The spelling of 13773568 in words is "thirteen million, seven hundred seventy-three thousand, five hundred sixty-eight".