13620226 has 8 divisors (see below), whose sum is σ = 21505680. Its totient is φ = 6451668.

The previous prime is 13620223. The next prime is 13620287. The reversal of 13620226 is 62202631.

It is a happy number.

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 = 13620197 and 13620206.

It is not an unprimeable number, because it can be changed into a prime (13620223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179176 + ... + 179251.

It is an arithmetic number, because the mean of its divisors is an integer number (2688210).

Almost surely, 2^13620226 is an apocalyptic number.

13620226 is a deficient number, since it is larger than the sum of its proper divisors (7885454).

13620226 is a wasteful number, since it uses less digits than its factorization.

13620226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358448.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 13620226 is about 3690.5590362437. The cubic root of 13620226 is about 238.8149101216.

Adding to 13620226 its reverse (62202631), we get a palindrome (75822857).

The spelling of 13620226 in words is "thirteen million, six hundred twenty thousand, two hundred twenty-six".