128272376 has 8 divisors (see below), whose sum is σ = 240510720. Its totient is φ = 64136184.

The previous prime is 128272321. The next prime is 128272387. The reversal of 128272376 is 673272821.

It is a tau number, because it is divible by the number of its divisors (8).

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, 8017016 + ... + 8017031.

It is an arithmetic number, because the mean of its divisors is an integer number (30063840).

Almost surely, 2^128272376 is an apocalyptic number.

It is an amenable number.

128272376 is a deficient number, since it is larger than the sum of its proper divisors (112238344).

128272376 is a wasteful number, since it uses less digits than its factorization.

128272376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16034053 (or 16034049 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 128272376 is about 11325.7395343527. The cubic root of 128272376 is about 504.3256377984.

The spelling of 128272376 in words is "one hundred twenty-eight million, two hundred seventy-two thousand, three hundred seventy-six".