3964500020 has 36 divisors (see below), whose sum is σ = 9015139980. Its totient is φ = 1463814144.

The previous prime is 3964500019. The next prime is 3964500031. The reversal of 3964500020 is 200054693.

3964500020 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 6 ways, for example, as 1309571344 + 2654928676 = 36188^2 + 51526^2 .

It is a super-4 number, since 4×3964500020⁴ (a number of 39 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583085 + ... + 589844.

It is an arithmetic number, because the mean of its divisors is an integer number (250420555).

Almost surely, 2^3964500020 is an apocalyptic number.

It is an amenable number.

3964500020 is an abundant number, since it is smaller than the sum of its proper divisors (5050639960).

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

3964500020 is a wasteful number, since it uses less digits than its factorization.

3964500020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172964 (or 1172949 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3964500020 is about 62964.2757442663. The cubic root of 3964500020 is about 1582.6910317634.

The spelling of 3964500020 in words is "three billion, nine hundred sixty-four million, five hundred thousand, twenty".