226651405 has 8 divisors (see below), whose sum is σ = 275038200. Its totient is φ = 179283456.

The previous prime is 226651393. The next prime is 226651421. The reversal of 226651405 is 504156622.

It can be written as a sum of positive squares in 4 ways, for example, as 1471369 + 225180036 = 1213^2 + 15006^2 .

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 226651405 - 2¹³ = 226643213 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, 254220 + ... + 255109.

It is an arithmetic number, because the mean of its divisors is an integer number (34379775).

Almost surely, 2^226651405 is an apocalyptic number.

It is an amenable number.

226651405 is a deficient number, since it is larger than the sum of its proper divisors (48386795).

226651405 is an equidigital number, since it uses as much as digits as its factorization.

226651405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509423.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 226651405 is about 15054.9461971805. The cubic root of 226651405 is about 609.7046003209.

The spelling of 226651405 in words is "two hundred twenty-six million, six hundred fifty-one thousand, four hundred five".