226891405 has 16 divisors (see below), whose sum is σ = 293529600. Its totient is φ = 167370048.

The previous prime is 226891393. The next prime is 226891409. The reversal of 226891405 is 504198622.

226891405 is nontrivially palindromic in base 16.

It is a cyclic number.

It is not a de Polignac number, because 226891405 - 2⁷ = 226891277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226891409) 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 15 ways as a sum of consecutive naturals, for example, 107046 + ... + 109144.

It is an arithmetic number, because the mean of its divisors is an integer number (18345600).

Almost surely, 2^226891405 is an apocalyptic number.

It is an amenable number.

226891405 is a deficient number, since it is larger than the sum of its proper divisors (66638195).

226891405 is a wasteful number, since it uses less digits than its factorization.

226891405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 226891405 is about 15062.9148905516. The cubic root of 226891405 is about 609.9197287548.

The spelling of 226891405 in words is "two hundred twenty-six million, eight hundred ninety-one thousand, four hundred five".