13345028 has 12 divisors (see below), whose sum is σ = 23407692. Its totient is φ = 6657120.

The previous prime is 13345027. The next prime is 13345063. The reversal of 13345028 is 82054331.

It can be written as a sum of positive squares in 2 ways, for example, as 6543364 + 6801664 = 2558^2 + 2608^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13344988 and 13345006.

It is not an unprimeable number, because it can be changed into a prime (13345027) 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, 1775 + ... + 5462.

It is an arithmetic number, because the mean of its divisors is an integer number (1950641).

Almost surely, 2^13345028 is an apocalyptic number.

It is an amenable number.

13345028 is a deficient number, since it is larger than the sum of its proper divisors (10062664).

13345028 is a wasteful number, since it uses less digits than its factorization.

13345028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7702 (or 7700 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 13345028 is about 3653.0847239012. The cubic root of 13345028 is about 237.1955278427.

Adding to 13345028 its reverse (82054331), we get a palindrome (95399359).

The spelling of 13345028 in words is "thirteen million, three hundred forty-five thousand, twenty-eight".