640302201 has 48 divisors (see below), whose sum is σ = 1159142400. Its totient is φ = 330881760.

The previous prime is 640302181. The next prime is 640302209. The reversal of 640302201 is 102203046.

It is a happy number.

640302201 is a `hidden beast` number, since 640 + 3 + 0 + 2 + 20 + 1 = 666.

640302201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 640302201 - 2⁷ = 640302073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (640302209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135586 + ... + 140228.

It is an arithmetic number, because the mean of its divisors is an integer number (24148800).

Almost surely, 2^640302201 is an apocalyptic number.

It is an amenable number.

640302201 is a deficient number, since it is larger than the sum of its proper divisors (518840199).

640302201 is a wasteful number, since it uses less digits than its factorization.

640302201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866 (or 4863 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 640302201 is about 25304.1933481390. The cubic root of 640302201 is about 861.9094947353.

Adding to 640302201 its reverse (102203046), we get a palindrome (742505247).

The spelling of 640302201 in words is "six hundred forty million, three hundred two thousand, two hundred one".