13630028 has 12 divisors (see below), whose sum is σ = 24155040. Its totient is φ = 6728592.

The previous prime is 13630009. The next prime is 13630031. The reversal of 13630028 is 82003631.

It is a junction number, because it is equal to n+sod(n) for n = 13629985 and 13630012.

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, 21251 + ... + 21882.

It is an arithmetic number, because the mean of its divisors is an integer number (2012920).

Almost surely, 2^13630028 is an apocalyptic number.

It is an amenable number.

13630028 is a deficient number, since it is larger than the sum of its proper divisors (10525012).

13630028 is a wasteful number, since it uses less digits than its factorization.

13630028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43216 (or 43214 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13630028 is about 3691.8867804958. The cubic root of 13630028 is about 238.8721852952.

Adding to 13630028 its reverse (82003631), we get a palindrome (95633659).

The spelling of 13630028 in words is "thirteen million, six hundred thirty thousand, twenty-eight".