13630322 has 4 divisors (see below), whose sum is σ = 20445486. Its totient is φ = 6815160.

The previous prime is 13630307. The next prime is 13630363. The reversal of 13630322 is 22303631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11162281 + 2468041 = 3341^2 + 1571^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13630294 and 13630303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3407579 + ... + 3407582.

Almost surely, 2^13630322 is an apocalyptic number.

13630322 is a deficient number, since it is larger than the sum of its proper divisors (6815164).

13630322 is an equidigital number, since it uses as much as digits as its factorization.

13630322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6815163.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 13630322 is about 3691.9265973202. The cubic root of 13630322 is about 238.8739027756.

Adding to 13630322 its reverse (22303631), we get a palindrome (35933953).

The spelling of 13630322 in words is "thirteen million, six hundred thirty thousand, three hundred twenty-two".