3944136852 has 36 divisors (see below), whose sum is σ = 10008718356. Its totient is φ = 1309593600.

The previous prime is 3944136829. The next prime is 3944136863. The reversal of 3944136852 is 2586314493.

It can be written as a sum of positive squares in 2 ways, for example, as 3868342416 + 75794436 = 62196^2 + 8706^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 3944136798 and 3944136807.

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, 203899 + ... + 222402.

Almost surely, 2^3944136852 is an apocalyptic number.

It is an amenable number.

3944136852 is an abundant number, since it is smaller than the sum of its proper divisors (6064581504).

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

3944136852 is a wasteful number, since it uses less digits than its factorization.

3944136852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426568 (or 426563 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 3944136852 is about 62802.3634268648. The cubic root of 3944136852 is about 1579.9766129102.

The spelling of 3944136852 in words is "three billion, nine hundred forty-four million, one hundred thirty-six thousand, eight hundred fifty-two".