3890128288 has 12 divisors (see below), whose sum is σ = 7658690130. Its totient is φ = 1945064128.

The previous prime is 3890128247. The next prime is 3890128301. The reversal of 3890128288 is 8828210983.

It can be written as a sum of positive squares in only one way, i.e., 3166087824 + 724040464 = 56268^2 + 26908^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60783223 + ... + 60783286.

Almost surely, 2^3890128288 is an apocalyptic number.

It is an amenable number.

3890128288 is a deficient number, since it is larger than the sum of its proper divisors (3768561842).

3890128288 is a wasteful number, since it uses less digits than its factorization.

3890128288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121566519 (or 121566511 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 3890128288 is about 62370.8929549674. The cubic root of 3890128288 is about 1572.7317025247.

The spelling of 3890128288 in words is "three billion, eight hundred ninety million, one hundred twenty-eight thousand, two hundred eighty-eight".