3860489728 has 20 divisors (see below), whose sum is σ = 7713440460. Its totient is φ = 1930244608.

The previous prime is 3860489663. The next prime is 3860489753. The reversal of 3860489728 is 8279840683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3769498 + ... + 3770521.

It is an arithmetic number, because the mean of its divisors is an integer number (385672023).

Almost surely, 2^3860489728 is an apocalyptic number.

It is an amenable number.

3860489728 is a deficient number, since it is larger than the sum of its proper divisors (3852950732).

3860489728 is an frugal number, since it uses more digits than its factorization.

3860489728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7540037 (or 7540021 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 55.

The square root of 3860489728 is about 62132.8393685658. The cubic root of 3860489728 is about 1568.7273454652.

The spelling of 3860489728 in words is "three billion, eight hundred sixty million, four hundred eighty-nine thousand, seven hundred twenty-eight".