272273128 has 32 divisors (see below), whose sum is σ = 524180160. Its totient is φ = 132507520.

The previous prime is 272273069. The next prime is 272273153. The reversal of 272273128 is 821372272.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 272273093 and 272273102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211575 + ... + 212857.

It is an arithmetic number, because the mean of its divisors is an integer number (16380630).

Almost surely, 2^272273128 is an apocalyptic number.

It is an amenable number.

272273128 is a deficient number, since it is larger than the sum of its proper divisors (251907032).

272273128 is a wasteful number, since it uses less digits than its factorization.

272273128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1973 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 272273128 is about 16500.7008336010. The cubic root of 272273128 is about 648.1391574837.

The spelling of 272273128 in words is "two hundred seventy-two million, two hundred seventy-three thousand, one hundred twenty-eight".