3929044672 has 28 divisors (see below), whose sum is σ = 8910513040. Its totient is φ = 1683876096.

The previous prime is 3929044661. The next prime is 3929044673. The reversal of 3929044672 is 2764409293.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (3929044673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4384647 + ... + 4385542.

Almost surely, 2^3929044672 is an apocalyptic number.

3929044672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3929044672 is an abundant number, since it is smaller than the sum of its proper divisors (4981468368).

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

3929044672 is an equidigital number, since it uses as much as digits as its factorization.

3929044672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8770208 (or 8770198 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 3929044672 is about 62682.0921156912. The cubic root of 3929044672 is about 1577.9587847851.

The spelling of 3929044672 in words is "three billion, nine hundred twenty-nine million, forty-four thousand, six hundred seventy-two".