228650280 has 64 divisors (see below), whose sum is σ = 687312000. Its totient is φ = 60852480.

The previous prime is 228650263. The next prime is 228650299. The reversal of 228650280 is 82056822.

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 15 ways as a sum of consecutive naturals, for example, 70290 + ... + 73470.

It is an arithmetic number, because the mean of its divisors is an integer number (10739250).

Almost surely, 2^228650280 is an apocalyptic number.

228650280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228650280 is an abundant number, since it is smaller than the sum of its proper divisors (458661720).

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

228650280 is a wasteful number, since it uses less digits than its factorization.

228650280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794 (or 3790 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 228650280 is about 15121.1864613859. The cubic root of 228650280 is about 611.4917177503.

The spelling of 228650280 in words is "two hundred twenty-eight million, six hundred fifty thousand, two hundred eighty".