13206630 has 16 divisors (see below), whose sum is σ = 31695984. Its totient is φ = 3521760.

The previous prime is 13206607. The next prime is 13206631. The reversal of 13206630 is 3660231.

It is a junction number, because it is equal to n+sod(n) for n = 13206597 and 13206606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13206631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220081 + ... + 220140.

It is an arithmetic number, because the mean of its divisors is an integer number (1980999).

Almost surely, 2^13206630 is an apocalyptic number.

13206630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13206630 is an abundant number, since it is smaller than the sum of its proper divisors (18489354).

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

13206630 is a wasteful number, since it uses less digits than its factorization.

13206630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440231.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 13206630 is about 3634.0927340947. The cubic root of 13206630 is about 236.3727113693.

Adding to 13206630 its reverse (3660231), we get a palindrome (16866861).

The spelling of 13206630 in words is "thirteen million, two hundred six thousand, six hundred thirty".