226784457 has 24 divisors (see below), whose sum is σ = 332026344. Its totient is φ = 149151744.

The previous prime is 226784429. The next prime is 226784461. The reversal of 226784457 is 754487622.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14907321 + 211877136 = 3861^2 + 14556^2 .

It is not a de Polignac number, because 226784457 - 2⁷ = 226784329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (226784417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237493 + ... + 238445.

It is an arithmetic number, because the mean of its divisors is an integer number (13834431).

Almost surely, 2^226784457 is an apocalyptic number.

It is an amenable number.

226784457 is a deficient number, since it is larger than the sum of its proper divisors (105241887).

226784457 is a wasteful number, since it uses less digits than its factorization.

226784457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1286 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 226784457 is about 15059.3644288197. The cubic root of 226784457 is about 609.8238826873.

The spelling of 226784457 in words is "two hundred twenty-six million, seven hundred eighty-four thousand, four hundred fifty-seven".