13028530 has 16 divisors (see below), whose sum is σ = 23572800. Its totient is φ = 5184432.

The previous prime is 13028503. The next prime is 13028531. The reversal of 13028530 is 3582031.

13028530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13028531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284 + ... + 5263.

It is an arithmetic number, because the mean of its divisors is an integer number (1473300).

Almost surely, 2^13028530 is an apocalyptic number.

13028530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13028530 is a deficient number, since it is larger than the sum of its proper divisors (10544270).

13028530 is a wasteful number, since it uses less digits than its factorization.

13028530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6753.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13028530 is about 3609.5055062986. The cubic root of 13028530 is about 235.3053522699.

The spelling of 13028530 in words is "thirteen million, twenty-eight thousand, five hundred thirty".