641450 has 12 divisors (see below), whose sum is σ = 1193190. Its totient is φ = 256560.

The previous prime is 641441. The next prime is 641453. The reversal of 641450 is 54146.

It is a happy number.

641450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 552049 + 89401 = 743^2 + 299^2 .

It is a super-2 number, since 2×641450² = 822916205000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6365 + ... + 6464.

2⁶⁴¹⁴⁵⁰ is an apocalyptic number.

641450 is a deficient number, since it is larger than the sum of its proper divisors (551740).

641450 is a wasteful number, since it uses less digits than its factorization.

641450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12841 (or 12836 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 641450 is about 800.9057372750. The cubic root of 641450 is about 86.2424203939.

Adding to 641450 its reverse (54146), we get a palindrome (695596).

The spelling of 641450 in words is "six hundred forty-one thousand, four hundred fifty".