226505405 has 8 divisors (see below), whose sum is σ = 310636032. Its totient is φ = 155317968.

The previous prime is 226505387. The next prime is 226505413. The reversal of 226505405 is 504505622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 226505405 - 2¹⁰ = 226504381 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3235757 + ... + 3235826.

It is an arithmetic number, because the mean of its divisors is an integer number (38829504).

Almost surely, 2^226505405 is an apocalyptic number.

It is an amenable number.

226505405 is a deficient number, since it is larger than the sum of its proper divisors (84130627).

226505405 is an equidigital number, since it uses as much as digits as its factorization.

226505405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6471595.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 226505405 is about 15050.0965113185. The cubic root of 226505405 is about 609.5736562216.

The spelling of 226505405 in words is "two hundred twenty-six million, five hundred five thousand, four hundred five".