226428661 has 8 divisors (see below), whose sum is σ = 239889600. Its totient is φ = 212983488.

The previous prime is 226428617. The next prime is 226428689. The reversal of 226428661 is 166824622.

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 226428661 - 2¹⁹ = 225904373 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 226428661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226428611) 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, 39240 + ... + 44638.

It is an arithmetic number, because the mean of its divisors is an integer number (29986200).

Almost surely, 2^226428661 is an apocalyptic number.

It is an amenable number.

226428661 is a deficient number, since it is larger than the sum of its proper divisors (13460939).

226428661 is a wasteful number, since it uses less digits than its factorization.

226428661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883.

The product of its digits is 55296, while the sum is 37.

The square root of 226428661 is about 15047.5466771165. The cubic root of 226428661 is about 609.5048036997.

The spelling of 226428661 in words is "two hundred twenty-six million, four hundred twenty-eight thousand, six hundred sixty-one".