3940680528 has 120 divisors (see below), whose sum is σ = 11654373120. Its totient is φ = 1240462080.

The previous prime is 3940680511. The next prime is 3940680571. The reversal of 3940680528 is 8250860493.

3940680528 is a `hidden beast` number, since 3 + 9 + 40 + 6 + 80 + 528 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254118 + ... + 269178.

It is an arithmetic number, because the mean of its divisors is an integer number (97119776).

Almost surely, 2^3940680528 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 3940680528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5827186560).

3940680528 is an abundant number, since it is smaller than the sum of its proper divisors (7713692592).

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

3940680528 is a wasteful number, since it uses less digits than its factorization.

3940680528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15177 (or 15168 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 3940680528 is about 62774.8399281113. The cubic root of 3940680528 is about 1579.5149565972.

The spelling of 3940680528 in words is "three billion, nine hundred forty million, six hundred eighty thousand, five hundred twenty-eight".