3803985280 has 128 divisors (see below), whose sum is σ = 9708180480. Its totient is φ = 1420296192.

The previous prime is 3803985277. The next prime is 3803985287. The reversal of 3803985280 is 825893083.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 3803985280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3803985287) 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, 1380384 + ... + 1383136.

It is an arithmetic number, because the mean of its divisors is an integer number (75845160).

Almost surely, 2^3803985280 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 3803985280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4854090240).

3803985280 is an abundant number, since it is smaller than the sum of its proper divisors (5904195200).

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

3803985280 is a wasteful number, since it uses less digits than its factorization.

3803985280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916 (or 2904 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 3803985280 is about 61676.4564481456. The cubic root of 3803985280 is about 1561.0360857756.

The spelling of 3803985280 in words is "three billion, eight hundred three million, nine hundred eighty-five thousand, two hundred eighty".