641330 has 16 divisors (see below), whose sum is σ = 1175040. Its totient is φ = 251952.

The previous prime is 641327. The next prime is 641371. The reversal of 641330 is 33146.

It is a super-2 number, since 2×641330² = 822608337800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 641299 and 641308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47 + ... + 1133.

It is an arithmetic number, because the mean of its divisors is an integer number (73440).

2⁶⁴¹³³⁰ is an apocalyptic number.

641330 is a deficient number, since it is larger than the sum of its proper divisors (533710).

641330 is a wasteful number, since it uses less digits than its factorization.

641330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 641330 is about 800.8308185878. The cubic root of 641330 is about 86.2370420917.

Adding to 641330 its reverse (33146), we get a palindrome (674476).

The spelling of 641330 in words is "six hundred forty-one thousand, three hundred thirty".