13321630 has 48 divisors (see below), whose sum is σ = 28826496. Its totient is φ = 4415040.

The previous prime is 13321619. The next prime is 13321639. The reversal of 13321630 is 3612331.

It is a junction number, because it is equal to n+sod(n) for n = 13321598 and 13321607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14752 + ... + 15628.

It is an arithmetic number, because the mean of its divisors is an integer number (600552).

Almost surely, 2^13321630 is an apocalyptic number.

13321630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13321630 is an abundant number, since it is smaller than the sum of its proper divisors (15504866).

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

13321630 is a wasteful number, since it uses less digits than its factorization.

13321630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 13321630 is about 3649.8808199721. The cubic root of 13321630 is about 237.0568208103.

Adding to 13321630 its reverse (3612331), we get a palindrome (16933961).

The spelling of 13321630 in words is "thirteen million, three hundred twenty-one thousand, six hundred thirty".