13031828 has 12 divisors (see below), whose sum is σ = 23032212. Its totient is φ = 6451200.

The previous prime is 13031827. The next prime is 13031849. The reversal of 13031828 is 82813031.

13031828 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 8655364 + 4376464 = 2942^2 + 2092^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13031797 and 13031806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031827) 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, 15725 + ... + 16532.

It is an arithmetic number, because the mean of its divisors is an integer number (1919351).

Almost surely, 2^13031828 is an apocalyptic number.

It is an amenable number.

13031828 is a deficient number, since it is larger than the sum of its proper divisors (10000384).

13031828 is a wasteful number, since it uses less digits than its factorization.

13031828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32362 (or 32360 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 13031828 is about 3609.9623266732. The cubic root of 13031828 is about 235.3252054071.

Adding to 13031828 its reverse (82813031), we get a palindrome (95844859).

The spelling of 13031828 in words is "thirteen million, thirty-one thousand, eight hundred twenty-eight".