228650226 has 64 divisors (see below), whose sum is σ = 534739968. Its totient is φ = 63834048.

The previous prime is 228650209. The next prime is 228650231. The reversal of 228650226 is 622056822.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372696 + ... + 373308.

It is an arithmetic number, because the mean of its divisors is an integer number (8355312).

Almost surely, 2^228650226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228650226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267369984).

228650226 is an abundant number, since it is smaller than the sum of its proper divisors (306089742).

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

228650226 is a wasteful number, since it uses less digits than its factorization.

228650226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 228650226 is about 15121.1846758116. The cubic root of 228650226 is about 611.4916696119.

The spelling of 228650226 in words is "two hundred twenty-eight million, six hundred fifty thousand, two hundred twenty-six".