13130928 has 60 divisors (see below), whose sum is σ = 37324248. Its totient is φ = 4308480.

The previous prime is 13130927. The next prime is 13130969. The reversal of 13130928 is 82903131.

It is not an unprimeable number, because it can be changed into a prime (13130927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8968 + ... + 10328.

Almost surely, 2^13130928 is an apocalyptic number.

13130928 is a gapful number since it is divisible by the number (18) 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 13130928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18662124).

13130928 is an abundant number, since it is smaller than the sum of its proper divisors (24193320).

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

13130928 is a wasteful number, since it uses less digits than its factorization.

13130928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13130928 is about 3623.6622359155. The cubic root of 13130928 is about 235.9202066737.

The spelling of 13130928 in words is "thirteen million, one hundred thirty thousand, nine hundred twenty-eight".