13380128 has 12 divisors (see below), whose sum is σ = 26342190. Its totient is φ = 6690048.

The previous prime is 13380119. The next prime is 13380131. The reversal of 13380128 is 82108331.

It can be written as a sum of positive squares in only one way, i.e., 12759184 + 620944 = 3572^2 + 788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13380097 and 13380106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209033 + ... + 209096.

Almost surely, 2^13380128 is an apocalyptic number.

It is an amenable number.

13380128 is a deficient number, since it is larger than the sum of its proper divisors (12962062).

13380128 is an equidigital number, since it uses as much as digits as its factorization.

13380128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418139 (or 418131 counting only the distinct ones).

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

The square root of 13380128 is about 3657.8857281222. The cubic root of 13380128 is about 237.4033024634.

Adding to 13380128 its reverse (82108331), we get a palindrome (95488459).

The spelling of 13380128 in words is "thirteen million, three hundred eighty thousand, one hundred twenty-eight".