641041288 has 16 divisors (see below), whose sum is σ = 1243399500. Its totient is φ = 309468096.

The previous prime is 641041283. The next prime is 641041301. The reversal of 641041288 is 882140146.

It can be written as a sum of positive squares in 2 ways, for example, as 640191204 + 850084 = 25302^2 + 922^2 .

It is not an unprimeable number, because it can be changed into a prime (641041283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381323 + ... + 1381786.

Almost surely, 2^641041288 is an apocalyptic number.

It is an amenable number.

641041288 is a deficient number, since it is larger than the sum of its proper divisors (602358212).

641041288 is a wasteful number, since it uses less digits than its factorization.

641041288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763144 (or 2763140 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 641041288 is about 25318.7931781908. The cubic root of 641041288 is about 862.2409950576.

The spelling of 641041288 in words is "six hundred forty-one million, forty-one thousand, two hundred eighty-eight".