226478565 has 32 divisors (see below), whose sum is σ = 406348800. Its totient is φ = 119672640.

The previous prime is 226478561. The next prime is 226478579. The reversal of 226478565 is 565874622.

226478565 is a `hidden beast` number, since 22 + 64 + 7 + 8 + 565 = 666.

It is not a de Polignac number, because 226478565 - 2² = 226478561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 226478565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226478561) 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 31 ways as a sum of consecutive naturals, for example, 7020 + ... + 22410.

It is an arithmetic number, because the mean of its divisors is an integer number (12698400).

Almost surely, 2^226478565 is an apocalyptic number.

It is an amenable number.

226478565 is a deficient number, since it is larger than the sum of its proper divisors (179870235).

226478565 is a wasteful number, since it uses less digits than its factorization.

226478565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15514 (or 15508 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 226478565 is about 15049.2047962675. The cubic root of 226478565 is about 609.5495779099.

The spelling of 226478565 in words is "two hundred twenty-six million, four hundred seventy-eight thousand, five hundred sixty-five".