3963780280 has 64 divisors (see below), whose sum is σ = 9332524800. Its totient is φ = 1513313280.

The previous prime is 3963780269. The next prime is 3963780307. The reversal of 3963780280 is 820873693.

3963780280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3963780280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68626 + ... + 112414.

It is an arithmetic number, because the mean of its divisors is an integer number (145820700).

Almost surely, 2^3963780280 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 3963780280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4666262400).

3963780280 is an abundant number, since it is smaller than the sum of its proper divisors (5368744520).

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

3963780280 is a wasteful number, since it uses less digits than its factorization.

3963780280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43904 (or 43900 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 3963780280 is about 62958.5600216523. The cubic root of 3963780280 is about 1582.5952487744.

The spelling of 3963780280 in words is "three billion, nine hundred sixty-three million, seven hundred eighty thousand, two hundred eighty".