228103785 has 96 divisors (see below), whose sum is σ = 496274688. Its totient is φ = 94348800.

The previous prime is 228103783. The next prime is 228103789. The reversal of 228103785 is 587301822.

228103785 is a `hidden beast` number, since 2 + 281 + 0 + 378 + 5 = 666.

228103785 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228103785 - 2¹ = 228103783 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228103783) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 216510 + ... + 217560.

It is an arithmetic number, because the mean of its divisors is an integer number (5169528).

Almost surely, 2^228103785 is an apocalyptic number.

It is an amenable number.

228103785 is an abundant number, since it is smaller than the sum of its proper divisors (268170903).

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

228103785 is a wasteful number, since it uses less digits than its factorization.

228103785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 228103785 is about 15103.1051443072. The cubic root of 228103785 is about 611.0041554662.

The spelling of 228103785 in words is "two hundred twenty-eight million, one hundred three thousand, seven hundred eighty-five".