3940051680 has 96 divisors (see below), whose sum is σ = 13790196000. Its totient is φ = 1050679296.

The previous prime is 3940051673. The next prime is 3940051681. The reversal of 3940051680 is 861500493.

3940051680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940051681) 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, 451705 + ... + 460344.

It is an arithmetic number, because the mean of its divisors is an integer number (143647875).

Almost surely, 2^3940051680 is an apocalyptic number.

3940051680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3940051680 is an abundant number, since it is smaller than the sum of its proper divisors (9850144320).

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

3940051680 is a wasteful number, since it uses less digits than its factorization.

3940051680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912073 (or 912059 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 3940051680 is about 62769.8309699811. The cubic root of 3940051680 is about 1579.4309332368.

The spelling of 3940051680 in words is "three billion, nine hundred forty million, fifty-one thousand, six hundred eighty".