641605232 has 10 divisors (see below), whose sum is σ = 1243110168. Its totient is φ = 320802608.

The previous prime is 641605207. The next prime is 641605297. The reversal of 641605232 is 232506146.

641605232 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 = 641605195 and 641605204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050148 + ... + 20050179.

Almost surely, 2^641605232 is an apocalyptic number.

It is an amenable number.

641605232 is a deficient number, since it is larger than the sum of its proper divisors (601504936).

641605232 is a wasteful number, since it uses less digits than its factorization.

641605232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40100335 (or 40100329 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 641605232 is about 25329.9275956328. The cubic root of 641605232 is about 862.4937677068.

The spelling of 641605232 in words is "six hundred forty-one million, six hundred five thousand, two hundred thirty-two".