228354280 has 128 divisors (see below), whose sum is σ = 646133760. Its totient is φ = 70560000.

The previous prime is 228354257. The next prime is 228354283. The reversal of 228354280 is 82453822.

It is a happy number.

228354280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (228354283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464835 + ... + 465325.

It is an arithmetic number, because the mean of its divisors is an integer number (5047920).

Almost surely, 2^228354280 is an apocalyptic number.

228354280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228354280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323066880).

228354280 is an abundant number, since it is smaller than the sum of its proper divisors (417779480).

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

228354280 is a wasteful number, since it uses less digits than its factorization.

228354280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 228354280 is about 15111.3956999345. The cubic root of 228354280 is about 611.2277342408.

The spelling of 228354280 in words is "two hundred twenty-eight million, three hundred fifty-four thousand, two hundred eighty".