641446 has 8 divisors (see below), whose sum is σ = 1036224. Its totient is φ = 296040.

The previous prime is 641441. The next prime is 641453. The reversal of 641446 is 644146.

641446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×641446² = 822905941832, 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 641446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12310 + ... + 12361.

It is an arithmetic number, because the mean of its divisors is an integer number (129528).

2⁶⁴¹⁴⁴⁶ is an apocalyptic number.

641446 is a deficient number, since it is larger than the sum of its proper divisors (394778).

641446 is a wasteful number, since it uses less digits than its factorization.

641446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24686.

The product of its digits is 2304, while the sum is 25.

The square root of 641446 is about 800.9032400983. The cubic root of 641446 is about 86.2422411280.

The spelling of 641446 in words is "six hundred forty-one thousand, four hundred forty-six".