3939263928 has 160 divisors (see below), whose sum is σ = 11476578960. Its totient is φ = 1261370880.

The previous prime is 3939263903. The next prime is 3939263929. The reversal of 3939263928 is 8293629393.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939263929) 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 39 ways as a sum of consecutive naturals, for example, 1778950 + ... + 1781162.

Almost surely, 2^3939263928 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 3939263928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5738289480).

3939263928 is an abundant number, since it is smaller than the sum of its proper divisors (7537315032).

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

3939263928 is a wasteful number, since it uses less digits than its factorization.

3939263928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339 (or 2326 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The square root of 3939263928 is about 62763.5557310132. Note that the first 3 decimals coincide. The cubic root of 3939263928 is about 1579.3256653447.

The spelling of 3939263928 in words is "three billion, nine hundred thirty-nine million, two hundred sixty-three thousand, nine hundred twenty-eight".