641094344 has 32 divisors (see below), whose sum is σ = 1388469600. Its totient is φ = 274264320.

The previous prime is 641094343. The next prime is 641094347. The reversal of 641094344 is 443490146.

It is a super-2 number, since 2×641094344² = 822003915817580672, which contains 22 as substring.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (641094343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212774 + ... + 215765.

It is an arithmetic number, because the mean of its divisors is an integer number (43389675).

Almost surely, 2^641094344 is an apocalyptic number.

It is an amenable number.

641094344 is an abundant number, since it is smaller than the sum of its proper divisors (747375256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641094344 is a wasteful number, since it uses less digits than its factorization.

641094344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428573 (or 428569 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 641094344 is about 25319.8409157720. The cubic root of 641094344 is about 862.2647822910.

The spelling of 641094344 in words is "six hundred forty-one million, ninety-four thousand, three hundred forty-four".