13328772 has 24 divisors (see below), whose sum is σ = 31860192. Its totient is φ = 4334400.

The previous prime is 13328761. The next prime is 13328797. The reversal of 13328772 is 27782331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13054 + ... + 14037.

It is an arithmetic number, because the mean of its divisors is an integer number (1327508).

Almost surely, 2^13328772 is an apocalyptic number.

13328772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13328772 is an abundant number, since it is smaller than the sum of its proper divisors (18531420).

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

13328772 is a wasteful number, since it uses less digits than its factorization.

13328772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27139 (or 27137 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 13328772 is about 3650.8590769845. The cubic root of 13328772 is about 237.0991769219.

The spelling of 13328772 in words is "thirteen million, three hundred twenty-eight thousand, seven hundred seventy-two".