128376028 has 12 divisors (see below), whose sum is σ = 245081592. Its totient is φ = 58352720.

The previous prime is 128376013. The next prime is 128376047. The reversal of 128376028 is 820673821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458775 + ... + 1458862.

It is an arithmetic number, because the mean of its divisors is an integer number (20423466).

Almost surely, 2^128376028 is an apocalyptic number.

It is an amenable number.

128376028 is a deficient number, since it is larger than the sum of its proper divisors (116705564).

128376028 is a wasteful number, since it uses less digits than its factorization.

128376028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917652 (or 2917650 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 128376028 is about 11330.3145587402. The cubic root of 128376028 is about 504.4614433103.

The spelling of 128376028 in words is "one hundred twenty-eight million, three hundred seventy-six thousand, twenty-eight".