641332 has 12 divisors (see below), whose sum is σ = 1171296. Its totient is φ = 306680.

The previous prime is 641327. The next prime is 641371. The reversal of 641332 is 233146.

It is a super-2 number, since 2×641332² = 822613468448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

641332 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3394 + ... + 3577.

It is an arithmetic number, because the mean of its divisors is an integer number (97608).

2⁶⁴¹³³² is an apocalyptic number.

It is an amenable number.

641332 is a deficient number, since it is larger than the sum of its proper divisors (529964).

641332 is a wasteful number, since it uses less digits than its factorization.

641332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6998 (or 6996 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 641332 is about 800.8320672900. The cubic root of 641332 is about 86.2371317356.

Adding to 641332 its reverse (233146), we get a palindrome (874478).

The spelling of 641332 in words is "six hundred forty-one thousand, three hundred thirty-two".