226407645 has 12 divisors (see below), whose sum is σ = 392439996. Its totient is φ = 120750720.

The previous prime is 226407589. The next prime is 226407647. The reversal of 226407645 is 546704622.

226407645 is a `hidden beast` number, since 2 + 2 + 6 + 4 + 0 + 7 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 156200004 + 70207641 = 12498^2 + 8379^2 .

It is not a de Polignac number, because 226407645 - 2¹² = 226403549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226407647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2515596 + ... + 2515685.

It is an arithmetic number, because the mean of its divisors is an integer number (32703333).

Almost surely, 2^226407645 is an apocalyptic number.

It is an amenable number.

226407645 is a deficient number, since it is larger than the sum of its proper divisors (166032351).

226407645 is a wasteful number, since it uses less digits than its factorization.

226407645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031292 (or 5031289 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 226407645 is about 15046.8483410979. The cubic root of 226407645 is about 609.4859460321.

The spelling of 226407645 in words is "two hundred twenty-six million, four hundred seven thousand, six hundred forty-five".