226621307 has 4 divisors (see below), whose sum is σ = 247223256. Its totient is φ = 206019360.

The previous prime is 226621267. The next prime is 226621313. The reversal of 226621307 is 703126622.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 226621307 - 2¹² = 226617211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 226621307.

It is not an unprimeable number, because it can be changed into a prime (226621397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10300958 + ... + 10300979.

It is an arithmetic number, because the mean of its divisors is an integer number (61805814).

Almost surely, 2^226621307 is an apocalyptic number.

226621307 is a deficient number, since it is larger than the sum of its proper divisors (20601949).

226621307 is a wasteful number, since it uses less digits than its factorization.

226621307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20601948.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 226621307 is about 15053.9465589592. The cubic root of 226621307 is about 609.6776107074.

Adding to 226621307 its reverse (703126622), we get a palindrome (929747929).

The spelling of 226621307 in words is "two hundred twenty-six million, six hundred twenty-one thousand, three hundred seven".