641646232 has 32 divisors (see below), whose sum is σ = 1276045920. Its totient is φ = 301432320.

The previous prime is 641646227. The next prime is 641646259. The reversal of 641646232 is 232646146.

It is a Harshad number since it is a multiple of its sum of digits (34).

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 7 ways as a sum of consecutive naturals, for example, 82078 + ... + 89554.

It is an arithmetic number, because the mean of its divisors is an integer number (39876435).

Almost surely, 2^641646232 is an apocalyptic number.

It is an amenable number.

641646232 is a deficient number, since it is larger than the sum of its proper divisors (634399688).

641646232 is a wasteful number, since it uses less digits than its factorization.

641646232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8131 (or 8127 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 641646232 is about 25330.7369020327. The cubic root of 641646232 is about 862.5121390716.

The spelling of 641646232 in words is "six hundred forty-one million, six hundred forty-six thousand, two hundred thirty-two".