13280000 has 90 divisors (see below), whose sum is σ = 33523644. Its totient is φ = 5248000.

The previous prime is 13279969. The next prime is 13280017. The reversal of 13280000 is 8231.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159959 + ... + 160041.

Almost surely, 2^13280000 is an apocalyptic number.

13280000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16761822).

13280000 is an abundant number, since it is smaller than the sum of its proper divisors (20243644).

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

13280000 is an frugal number, since it uses more digits than its factorization.

13280000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 13280000 is about 3644.1734316577. The cubic root of 13280000 is about 236.8096295086.

Adding to 13280000 its reverse (8231), we get a palindrome (13288231).

The spelling of 13280000 in words is "thirteen million, two hundred eighty thousand".