228452280 has 64 divisors (see below), whose sum is σ = 783267840. Its totient is φ = 52217472.

The previous prime is 228452221. The next prime is 228452291. The reversal of 228452280 is 82254822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135144 + ... + 136823.

It is an arithmetic number, because the mean of its divisors is an integer number (12238560).

Almost surely, 2^228452280 is an apocalyptic number.

228452280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228452280 is an abundant number, since it is smaller than the sum of its proper divisors (554815560).

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

228452280 is a wasteful number, since it uses less digits than its factorization.

228452280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271988 (or 271984 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 228452280 is about 15114.6379381049. The cubic root of 228452280 is about 611.3151594339.

The spelling of 228452280 in words is "two hundred twenty-eight million, four hundred fifty-two thousand, two hundred eighty".