226646621 has 8 divisors (see below), whose sum is σ = 228547200. Its totient is φ = 224751600.

The previous prime is 226646617. The next prime is 226646627. The reversal of 226646621 is 126646622.

226646621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 226646621 - 2² = 226646617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226646627) 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, 125795 + ... + 127583.

It is an arithmetic number, because the mean of its divisors is an integer number (28568400).

Almost surely, 2^226646621 is an apocalyptic number.

It is an amenable number.

226646621 is a deficient number, since it is larger than the sum of its proper divisors (1900579).

226646621 is a wasteful number, since it uses less digits than its factorization.

226646621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779.

The product of its digits is 41472, while the sum is 35.

The square root of 226646621 is about 15054.7873116826. The cubic root of 226646621 is about 609.7003105507.

Subtracting from 226646621 its reverse (126646622), we obtain a palindrome (99999999).

The spelling of 226646621 in words is "two hundred twenty-six million, six hundred forty-six thousand, six hundred twenty-one".