3959440980 has 96 divisors (see below), whose sum is σ = 12107612160. Its totient is φ = 958807680.

The previous prime is 3959440967. The next prime is 3959440999. The reversal of 3959440980 is 890449593.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 714661 + ... + 720179.

It is an arithmetic number, because the mean of its divisors is an integer number (126120960).

Almost surely, 2^3959440980 is an apocalyptic number.

3959440980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3959440980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6053806080).

3959440980 is an abundant number, since it is smaller than the sum of its proper divisors (8148171180).

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

3959440980 is a wasteful number, since it uses less digits than its factorization.

3959440980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629 (or 6627 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The square root of 3959440980 is about 62924.0890279708. The cubic root of 3959440980 is about 1582.0175289727.

The spelling of 3959440980 in words is "three billion, nine hundred fifty-nine million, four hundred forty thousand, nine hundred eighty".