228755646 has 48 divisors (see below), whose sum is σ = 580271328. Its totient is φ = 63763200.

The previous prime is 228755641. The next prime is 228755693. The reversal of 228755646 is 646557822.

228755646 is a `hidden beast` number, since 2 + 2 + 87 + 5 + 564 + 6 = 666.

228755646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228755641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16975 + ... + 27306.

It is an arithmetic number, because the mean of its divisors is an integer number (12088986).

Almost surely, 2^228755646 is an apocalyptic number.

228755646 is an abundant number, since it is smaller than the sum of its proper divisors (351515682).

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

228755646 is a wasteful number, since it uses less digits than its factorization.

228755646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44337 (or 44334 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 228755646 is about 15124.6701121049. The cubic root of 228755646 is about 611.5856319759.

The spelling of 228755646 in words is "two hundred twenty-eight million, seven hundred fifty-five thousand, six hundred forty-six".