13330256 has 20 divisors (see below), whose sum is σ = 26718900. Its totient is φ = 6435072.

The previous prime is 13330243. The next prime is 13330259. The reversal of 13330256 is 65203331.

13330256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5953600 + 7376656 = 2440^2 + 2716^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330259) 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, 13901 + ... + 14828.

It is an arithmetic number, because the mean of its divisors is an integer number (1335945).

Almost surely, 2^13330256 is an apocalyptic number.

13330256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13330256 is an abundant number, since it is smaller than the sum of its proper divisors (13388644).

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

13330256 is a wasteful number, since it uses less digits than its factorization.

13330256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28766 (or 28760 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 13330256 is about 3651.0623111637. The cubic root of 13330256 is about 237.1079759851.

Adding to 13330256 its reverse (65203331), we get a palindrome (78533587).

The spelling of 13330256 in words is "thirteen million, three hundred thirty thousand, two hundred fifty-six".