13039828 has 6 divisors (see below), whose sum is σ = 22819706. Its totient is φ = 6519912.

The previous prime is 13039823. The next prime is 13039841. The reversal of 13039828 is 82893031.

It can be written as a sum of positive squares in only one way, i.e., 11847364 + 1192464 = 3442^2 + 1092^2 .

It is a super-2 number, since 2×13039828² = 340074228539168, which contains 22 as substring.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13039793 and 13039802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13039823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1629975 + ... + 1629982.

Almost surely, 2^13039828 is an apocalyptic number.

It is an amenable number.

13039828 is a deficient number, since it is larger than the sum of its proper divisors (9779878).

13039828 is a wasteful number, since it uses less digits than its factorization.

13039828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259961 (or 3259959 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 13039828 is about 3611.0702014777. The cubic root of 13039828 is about 235.3733494982.

The spelling of 13039828 in words is "thirteen million, thirty-nine thousand, eight hundred twenty-eight".