228083780 has 12 divisors (see below), whose sum is σ = 478975980. Its totient is φ = 91233504.

The previous prime is 228083761. The next prime is 228083803. The reversal of 228083780 is 87380822.

228083780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 153710404 + 74373376 = 12398^2 + 8624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5702075 + ... + 5702114.

It is an arithmetic number, because the mean of its divisors is an integer number (39914665).

Almost surely, 2^228083780 is an apocalyptic number.

228083780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228083780 is an abundant number, since it is smaller than the sum of its proper divisors (250892200).

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

228083780 is a wasteful number, since it uses less digits than its factorization.

228083780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11404198 (or 11404196 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 228083780 is about 15102.4428487579. The cubic root of 228083780 is about 610.9862929897.

The spelling of 228083780 in words is "two hundred twenty-eight million, eighty-three thousand, seven hundred eighty".