3949795824 has 160 divisors (see below), whose sum is σ = 11444267520. Its totient is φ = 1165495296.

The previous prime is 3949795813. The next prime is 3949795849. The reversal of 3949795824 is 4285979493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3021379 + ... + 3022685.

It is an arithmetic number, because the mean of its divisors is an integer number (71526672).

Almost surely, 2^3949795824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3949795824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5722133760).

3949795824 is an abundant number, since it is smaller than the sum of its proper divisors (7494471696).

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

3949795824 is a wasteful number, since it uses less digits than its factorization.

3949795824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1521 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The square root of 3949795824 is about 62847.4010918510. The cubic root of 3949795824 is about 1580.7318918646.

The spelling of 3949795824 in words is "three billion, nine hundred forty-nine million, seven hundred ninety-five thousand, eight hundred twenty-four".