226531228 has 24 divisors (see below), whose sum is σ = 494250624. Its totient is φ = 88258800.

The previous prime is 226531177. The next prime is 226531231. The reversal of 226531228 is 822135622.

It is a self number, because there is not a number n which added to its sum of digits gives 226531228.

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, 367438 + ... + 368053.

It is an arithmetic number, because the mean of its divisors is an integer number (20593776).

Almost surely, 2^226531228 is an apocalyptic number.

226531228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

226531228 is an abundant number, since it is smaller than the sum of its proper divisors (267719396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

226531228 is a wasteful number, since it uses less digits than its factorization.

226531228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735513 (or 735511 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 226531228 is about 15050.9543883436. The cubic root of 226531228 is about 609.5968203817.

The spelling of 226531228 in words is "two hundred twenty-six million, five hundred thirty-one thousand, two hundred twenty-eight".