3929921016 has 64 divisors (see below), whose sum is σ = 11489491200. Its totient is φ = 1096720128.

The previous prime is 3929921003. The next prime is 3929921033. The reversal of 3929921016 is 6101299293.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264781 + ... + 279228.

It is an arithmetic number, because the mean of its divisors is an integer number (179523300).

Almost surely, 2^3929921016 is an apocalyptic number.

It is an amenable number.

3929921016 is an abundant number, since it is smaller than the sum of its proper divisors (7559570184).

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

3929921016 is a wasteful number, since it uses less digits than its factorization.

3929921016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544068 (or 544064 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 3929921016 is about 62689.0821116405. The cubic root of 3929921016 is about 1578.0760933619.

The spelling of 3929921016 in words is "three billion, nine hundred twenty-nine million, nine hundred twenty-one thousand, sixteen".