3880585728 has 60 divisors (see below), whose sum is σ = 11199646458. Its totient is φ = 1293527040.

The previous prime is 3880585721. The next prime is 3880585739. The reversal of 3880585728 is 8275850883.

It is a happy number.

3880585728 is a `hidden beast` number, since 38 + 8 + 0 + 585 + 7 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3491391744 + 389193984 = 59088^2 + 19728^2 .

It is not an unprimeable number, because it can be changed into a prime (3880585721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416463 + ... + 425678.

Almost surely, 2^3880585728 is an apocalyptic number.

It is an amenable number.

3880585728 is an abundant number, since it is smaller than the sum of its proper divisors (7319060730).

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

3880585728 is an equidigital number, since it uses as much as digits as its factorization.

3880585728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842165 (or 842146 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The square root of 3880585728 is about 62294.3474803292. The cubic root of 3880585728 is about 1571.4446691401. Note that the first 3 decimals are identical.

The spelling of 3880585728 in words is "three billion, eight hundred eighty million, five hundred eighty-five thousand, seven hundred twenty-eight".