13213630 has 8 divisors (see below), whose sum is σ = 23784552. Its totient is φ = 5285448.

The previous prime is 13213579. The next prime is 13213667. The reversal of 13213630 is 3631231.

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 = 13213598 and 13213607.

It is a congruent number.

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, 660672 + ... + 660691.

It is an arithmetic number, because the mean of its divisors is an integer number (2973069).

Almost surely, 2^13213630 is an apocalyptic number.

13213630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13213630 is a deficient number, since it is larger than the sum of its proper divisors (10570922).

13213630 is a wasteful number, since it uses less digits than its factorization.

13213630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321370.

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

The square root of 13213630 is about 3635.0557079638. The cubic root of 13213630 is about 236.4144660721.

Adding to 13213630 its reverse (3631231), we get a palindrome (16844861).

The spelling of 13213630 in words is "thirteen million, two hundred thirteen thousand, six hundred thirty".