641070228 has 24 divisors (see below), whose sum is σ = 1520354080. Its totient is φ = 210186720.

The previous prime is 641070217. The next prime is 641070257. The reversal of 641070228 is 822070146.

641070228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 641070195 and 641070204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437158 + ... + 438621.

Almost surely, 2^641070228 is an apocalyptic number.

It is an amenable number.

641070228 is an abundant number, since it is smaller than the sum of its proper divisors (879283852).

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

641070228 is a wasteful number, since it uses less digits than its factorization.

641070228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875847 (or 875845 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 641070228 is about 25319.3646839726. The cubic root of 641070228 is about 862.2539702379.

The spelling of 641070228 in words is "six hundred forty-one million, seventy thousand, two hundred twenty-eight".