272428557 has 8 divisors (see below), whose sum is σ = 364336800. Its totient is φ = 181069680.

The previous prime is 272428543. The next prime is 272428567. The reversal of 272428557 is 755824272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 272428557 - 2⁸ = 272428301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272428567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136182 + ... + 138167.

It is an arithmetic number, because the mean of its divisors is an integer number (45542100).

Almost surely, 2^272428557 is an apocalyptic number.

It is an amenable number.

272428557 is a deficient number, since it is larger than the sum of its proper divisors (91908243).

272428557 is a wasteful number, since it uses less digits than its factorization.

272428557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274683.

The product of its digits is 313600, while the sum is 42.

The square root of 272428557 is about 16505.4099312922. The cubic root of 272428557 is about 648.2624655979.

The spelling of 272428557 in words is "two hundred seventy-two million, four hundred twenty-eight thousand, five hundred fifty-seven".