13028256 has 96 divisors (see below), whose sum is σ = 40279680. Its totient is φ = 4082688.

The previous prime is 13028251. The next prime is 13028263. The reversal of 13028256 is 65282031.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13028251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14245 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (419580).

Almost surely, 2^13028256 is an apocalyptic number.

13028256 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 13028256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20139840).

13028256 is an abundant number, since it is smaller than the sum of its proper divisors (27251424).

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

13028256 is a wasteful number, since it uses less digits than its factorization.

13028256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923 (or 909 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 13028256 is about 3609.4675507615. The cubic root of 13028256 is about 235.3037027076.

The spelling of 13028256 in words is "thirteen million, twenty-eight thousand, two hundred fifty-six".