3888361728 has 54 divisors (see below), whose sum is σ = 11211112094. Its totient is φ = 1296119808.

The previous prime is 3888361727. The next prime is 3888361733. The reversal of 3888361728 is 8271638883.

It can be written as a sum of positive squares in only one way, i.e., 3887771904 + 589824 = 62352^2 + 768^2 .

It is not an unprimeable number, because it can be changed into a prime (3888361727) 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, 841525 + ... + 846132.

Almost surely, 2^3888361728 is an apocalyptic number.

It is an amenable number.

3888361728 is an abundant number, since it is smaller than the sum of its proper divisors (7322750366).

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

3888361728 is a wasteful number, since it uses less digits than its factorization.

3888361728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687679 (or 1687662 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 3888361728 is about 62356.7296127691. The cubic root of 3888361728 is about 1572.4936002159.

The spelling of 3888361728 in words is "three billion, eight hundred eighty-eight million, three hundred sixty-one thousand, seven hundred twenty-eight".