272907128 has 16 divisors (see below), whose sum is σ = 551062680. Its totient is φ = 125957088.

The previous prime is 272907119. The next prime is 272907143. The reversal of 272907128 is 821709272.

It is a junction number, because it is equal to n+sod(n) for n = 272907091 and 272907100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311950 + ... + 1312157.

Almost surely, 2^272907128 is an apocalyptic number.

It is an amenable number.

272907128 is an abundant number, since it is smaller than the sum of its proper divisors (278155552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

272907128 is a wasteful number, since it uses less digits than its factorization.

272907128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624126 (or 2624122 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 272907128 is about 16519.9009682262. The cubic root of 272907128 is about 648.6418410601.

The spelling of 272907128 in words is "two hundred seventy-two million, nine hundred seven thousand, one hundred twenty-eight".