3928143216 has 80 divisors (see below), whose sum is σ = 10793309184. Its totient is φ = 1226775552.

The previous prime is 3928143209. The next prime is 3928143217. The reversal of 3928143216 is 6123418293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928143217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171175 + ... + 192761.

Almost surely, 2^3928143216 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 3928143216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5396654592).

3928143216 is an abundant number, since it is smaller than the sum of its proper divisors (6865165968).

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

3928143216 is a wasteful number, since it uses less digits than its factorization.

3928143216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21838 (or 21832 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 3928143216 is about 62674.9010051073. The cubic root of 3928143216 is about 1577.8380964810.

The spelling of 3928143216 in words is "three billion, nine hundred twenty-eight million, one hundred forty-three thousand, two hundred sixteen".