3940272608 has 36 divisors (see below), whose sum is σ = 8011670688. Its totient is φ = 1905626880.

The previous prime is 3940272593. The next prime is 3940272619. The reversal of 3940272608 is 8062720493.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1976060 + ... + 1978052.

It is an arithmetic number, because the mean of its divisors is an integer number (222546408).

Almost surely, 2^3940272608 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 3940272608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4005835344).

3940272608 is an abundant number, since it is smaller than the sum of its proper divisors (4071398080).

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

3940272608 is an frugal number, since it uses more digits than its factorization.

3940272608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 3940272608 is about 62771.5907716222. The cubic root of 3940272608 is about 1579.4604534922.

The spelling of 3940272608 in words is "three billion, nine hundred forty million, two hundred seventy-two thousand, six hundred eight".