3640200020 has 24 divisors (see below), whose sum is σ = 7684036584. Its totient is φ = 1448534016.

The previous prime is 3640200013. The next prime is 3640200037. The reversal of 3640200020 is 200020463.

3640200020 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 4 ways, for example, as 877225924 + 2762974096 = 29618^2 + 52564^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467669 + ... + 475388.

It is an arithmetic number, because the mean of its divisors is an integer number (320168191).

Almost surely, 2^3640200020 is an apocalyptic number.

It is an amenable number.

3640200020 is an abundant number, since it is smaller than the sum of its proper divisors (4043836564).

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

3640200020 is a wasteful number, since it uses less digits than its factorization.

3640200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943259 (or 943257 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3640200020 is about 60334.0701428306. The cubic root of 3640200020 is about 1538.3025120201.

Adding to 3640200020 its reverse (200020463), we get a palindrome (3840220483).

The spelling of 3640200020 in words is "three billion, six hundred forty million, two hundred thousand, twenty".