13321860 has 48 divisors (see below), whose sum is σ = 37497600. Its totient is φ = 3533824.

The previous prime is 13321837. The next prime is 13321877. The reversal of 13321860 is 6812331.

It is a self number, because there is not a number n which added to its sum of digits gives 13321860.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13876 + ... + 14804.

It is an arithmetic number, because the mean of its divisors is an integer number (781200).

Almost surely, 2^13321860 is an apocalyptic number.

13321860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321860 is an abundant number, since it is smaller than the sum of its proper divisors (24175740).

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

13321860 is a wasteful number, since it uses less digits than its factorization.

13321860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13321860 is about 3649.9123277142. The cubic root of 13321860 is about 237.0581850766.

The spelling of 13321860 in words is "thirteen million, three hundred twenty-one thousand, eight hundred sixty".