13025844 has 54 divisors (see below), whose sum is σ = 35670726. Its totient is φ = 4006080.

The previous prime is 13025807. The next prime is 13025899. The reversal of 13025844 is 44852031.

It can be written as a sum of positive squares in 3 ways, for example, as 1040400 + 11985444 = 1020^2 + 3462^2 .

It is a super-2 number, since 2×13025844² = 339345223824672, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5014 + ... + 7154.

It is an arithmetic number, because the mean of its divisors is an integer number (660569).

Almost surely, 2^13025844 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 13025844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17835363).

13025844 is an abundant number, since it is smaller than the sum of its proper divisors (22644882).

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

13025844 is a wasteful number, since it uses less digits than its factorization.

13025844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 13025844 is about 3609.1334139929. The cubic root of 13025844 is about 235.2891807445.

Adding to 13025844 its reverse (44852031), we get a palindrome (57877875).

The spelling of 13025844 in words is "thirteen million, twenty-five thousand, eight hundred forty-four".