226547728 has 40 divisors (see below), whose sum is σ = 486977760. Its totient is φ = 101226240.

The previous prime is 226547719. The next prime is 226547731. The reversal of 226547728 is 827745622.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525 + ... + 21292.

It is an arithmetic number, because the mean of its divisors is an integer number (12174444).

Almost surely, 2^226547728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226547728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243488880).

226547728 is an abundant number, since it is smaller than the sum of its proper divisors (260430032).

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

226547728 is a wasteful number, since it uses less digits than its factorization.

226547728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21895 (or 21889 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 226547728 is about 15051.5025163603. The cubic root of 226547728 is about 609.6116205536.

The spelling of 226547728 in words is "two hundred twenty-six million, five hundred forty-seven thousand, seven hundred twenty-eight".