641005230 has 32 divisors (see below), whose sum is σ = 1628908704. Its totient is φ = 160879616.

The previous prime is 641005207. The next prime is 641005231. The reversal of 641005230 is 32500146.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 641005197 and 641005206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641005231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627927 + ... + 628946.

It is an arithmetic number, because the mean of its divisors is an integer number (50903397).

Almost surely, 2^641005230 is an apocalyptic number.

641005230 is an abundant number, since it is smaller than the sum of its proper divisors (987903474).

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

641005230 is a wasteful number, since it uses less digits than its factorization.

641005230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256900.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 641005230 is about 25318.0810884237. The cubic root of 641005230 is about 862.2248279925.

Adding to 641005230 its reverse (32500146), we get a palindrome (673505376).

The spelling of 641005230 in words is "six hundred forty-one million, five thousand, two hundred thirty".