228335780 has 24 divisors (see below), whose sum is σ = 482284152. Its totient is φ = 90804992.

The previous prime is 228335771. The next prime is 228335803. The reversal of 228335780 is 87533822.

It can be written as a sum of positive squares in 4 ways, for example, as 92659876 + 135675904 = 9626^2 + 11648^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29537 + ... + 36456.

It is an arithmetic number, because the mean of its divisors is an integer number (20095173).

Almost surely, 2^228335780 is an apocalyptic number.

228335780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228335780 is an abundant number, since it is smaller than the sum of its proper divisors (253948372).

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

228335780 is a wasteful number, since it uses less digits than its factorization.

228335780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66175 (or 66173 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 228335780 is about 15110.7835667116. The cubic root of 228335780 is about 611.2112276989.

The spelling of 228335780 in words is "two hundred twenty-eight million, three hundred thirty-five thousand, seven hundred eighty".