641468 has 6 divisors (see below), whose sum is σ = 1122576. Its totient is φ = 320732.

The previous prime is 641467. The next prime is 641471. The reversal of 641468 is 864146.

It is a super-2 number, since 2×641468² = 822962390048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80180 + ... + 80187.

It is an arithmetic number, because the mean of its divisors is an integer number (187096).

2⁶⁴¹⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

641468 is a deficient number, since it is larger than the sum of its proper divisors (481108).

641468 is a wasteful number, since it uses less digits than its factorization.

641468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160371 (or 160369 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 641468 is about 800.9169744736. The cubic root of 641468 is about 86.2432270814.

The spelling of 641468 in words is "six hundred forty-one thousand, four hundred sixty-eight".