641030 has 16 divisors (see below), whose sum is σ = 1242864. Its totient is φ = 236640.

The previous prime is 640993. The next prime is 641051. The reversal of 641030 is 30146.

It is a junction number, because it is equal to n+sod(n) for n = 640996 and 641014.

It is a congruent number.

It is an unprimeable number.

641030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 2595.

It is an arithmetic number, because the mean of its divisors is an integer number (77679).

2⁶⁴¹⁰³⁰ is an apocalyptic number.

641030 is a deficient number, since it is larger than the sum of its proper divisors (601834).

641030 is a wasteful number, since it uses less digits than its factorization.

641030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4951.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 641030 is about 800.6434911994. The cubic root of 641030 is about 86.2235934004.

Adding to 641030 its reverse (30146), we get a palindrome (671176).

The spelling of 641030 in words is "six hundred forty-one thousand, thirty".