641595732 has 12 divisors (see below), whose sum is σ = 1497056736. Its totient is φ = 213865240.

The previous prime is 641595719. The next prime is 641595761. The reversal of 641595732 is 237595146.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26733144 + ... + 26733167.

It is an arithmetic number, because the mean of its divisors is an integer number (124754728).

Almost surely, 2^641595732 is an apocalyptic number.

It is an amenable number.

641595732 is an abundant number, since it is smaller than the sum of its proper divisors (855461004).

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

641595732 is a wasteful number, since it uses less digits than its factorization.

641595732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53466318 (or 53466316 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 641595732 is about 25329.7400697283. The cubic root of 641595732 is about 862.4895108155.

The spelling of 641595732 in words is "six hundred forty-one million, five hundred ninety-five thousand, seven hundred thirty-two".