13205330 has 8 divisors (see below), whose sum is σ = 23769612. Its totient is φ = 5282128.

The previous prime is 13205329. The next prime is 13205347. The reversal of 13205330 is 3350231.

It can be written as a sum of positive squares in 2 ways, for example, as 10699441 + 2505889 = 3271^2 + 1583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13205299 and 13205308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660257 + ... + 660276.

Almost surely, 2^13205330 is an apocalyptic number.

13205330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13205330 is a deficient number, since it is larger than the sum of its proper divisors (10564282).

13205330 is a wasteful number, since it uses less digits than its factorization.

13205330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320540.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 13205330 is about 3633.9138679941. The cubic root of 13205330 is about 236.3649553002.

Adding to 13205330 its reverse (3350231), we get a palindrome (16555561).

The spelling of 13205330 in words is "thirteen million, two hundred five thousand, three hundred thirty".