13321398 has 32 divisors (see below), whose sum is σ = 27546624. Its totient is φ = 4292352.

The previous prime is 13321397. The next prime is 13321403. The reversal of 13321398 is 89312331.

13321398 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27111 + ... + 27597.

It is an arithmetic number, because the mean of its divisors is an integer number (860832).

Almost surely, 2^13321398 is an apocalyptic number.

13321398 is an abundant number, since it is smaller than the sum of its proper divisors (14225226).

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

13321398 is a wasteful number, since it uses less digits than its factorization.

13321398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its digits is 3888, while the sum is 30.

The square root of 13321398 is about 3649.8490379740. The cubic root of 13321398 is about 237.0554446648.

The spelling of 13321398 in words is "thirteen million, three hundred twenty-one thousand, three hundred ninety-eight".