641004002 has 8 divisors (see below), whose sum is σ = 961656300. Its totient is φ = 320451904.

The previous prime is 641003983. The next prime is 641004017. The reversal of 641004002 is 200400146.

641004002 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 2 ways, for example, as 632069881 + 8934121 = 25141^2 + 2989^2 .

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

It is a super-2 number, since 2×641004002² = 821772261160032008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6227 + ... + 36342.

Almost surely, 2^641004002 is an apocalyptic number.

641004002 is a deficient number, since it is larger than the sum of its proper divisors (320652298).

641004002 is a wasteful number, since it uses less digits than its factorization.

641004002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50100.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 641004002 is about 25318.0568369691. The cubic root of 641004002 is about 862.2242773923.

Adding to 641004002 its reverse (200400146), we get a palindrome (841404148).

The spelling of 641004002 in words is "six hundred forty-one million, four thousand, two".