3929644992 has 112 divisors (see below), whose sum is σ = 12796593152. Its totient is φ = 1036385280.

The previous prime is 3929644973. The next prime is 3929644993. The reversal of 3929644992 is 2994469293.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3929644993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94984 + ... + 129927.

It is an arithmetic number, because the mean of its divisors is an integer number (114255296).

Almost surely, 2^3929644992 is an apocalyptic number.

3929644992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3929644992 is an abundant number, since it is smaller than the sum of its proper divisors (8866948160).

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

3929644992 is a wasteful number, since it uses less digits than its factorization.

3929644992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224946 (or 224936 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 57.

The square root of 3929644992 is about 62686.8805413062. The cubic root of 3929644992 is about 1578.0391463026.

The spelling of 3929644992 in words is "three billion, nine hundred twenty-nine million, six hundred forty-four thousand, nine hundred ninety-two".