128274004 has 6 divisors (see below), whose sum is σ = 224479514. Its totient is φ = 64137000.

The previous prime is 128273987. The next prime is 128274011. The reversal of 128274004 is 400472821.

It can be written as a sum of positive squares in only one way, i.e., 82846404 + 45427600 = 9102^2 + 6740^2 .

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, 16034247 + ... + 16034254.

Almost surely, 2^128274004 is an apocalyptic number.

It is an amenable number.

128274004 is a deficient number, since it is larger than the sum of its proper divisors (96205510).

128274004 is a wasteful number, since it uses less digits than its factorization.

128274004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32068505 (or 32068503 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 128274004 is about 11325.8114058111. The cubic root of 128274004 is about 504.3277713798.

The spelling of 128274004 in words is "one hundred twenty-eight million, two hundred seventy-four thousand, four".