3920939568 has 320 divisors, whose sum is σ = 14669061120. Its totient is φ = 973099008.

The previous prime is 3920939549. The next prime is 3920939621. The reversal of 3920939568 is 8659390293.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 665371 + ... + 671237.

It is an arithmetic number, because the mean of its divisors is an integer number (45840816).

Almost surely, 2^3920939568 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 3920939568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7334530560).

3920939568 is an abundant number, since it is smaller than the sum of its proper divisors (10748121552).

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

3920939568 is a wasteful number, since it uses less digits than its factorization.

3920939568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5921 (or 5909 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The square root of 3920939568 is about 62617.4062701419. The cubic root of 3920939568 is about 1576.8729971372.

The spelling of 3920939568 in words is "three billion, nine hundred twenty million, nine hundred thirty-nine thousand, five hundred sixty-eight".