226666305 has 12 divisors (see below), whose sum is σ = 392888340. Its totient is φ = 120888672.

The previous prime is 226666283. The next prime is 226666313. The reversal of 226666305 is 503666622.

It can be written as a sum of positive squares in 2 ways, for example, as 47320641 + 179345664 = 6879^2 + 13392^2 .

It is not a de Polignac number, because 226666305 - 2⁵ = 226666273 is a prime.

It is a super-2 number, since 2×226666305² = 102755227644706050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 226666305.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2518470 + ... + 2518559.

It is an arithmetic number, because the mean of its divisors is an integer number (32740695).

Almost surely, 2^226666305 is an apocalyptic number.

It is an amenable number.

226666305 is a deficient number, since it is larger than the sum of its proper divisors (166222035).

226666305 is a wasteful number, since it uses less digits than its factorization.

226666305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037040 (or 5037037 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 226666305 is about 15055.4410430249. The cubic root of 226666305 is about 609.7179606314.

The spelling of 226666305 in words is "two hundred twenty-six million, six hundred sixty-six thousand, three hundred five".