271278428 has 12 divisors (see below), whose sum is σ = 499723560. Its totient is φ = 128500272.

The previous prime is 271278421. The next prime is 271278457. The reversal of 271278428 is 824872172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271278421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784651 + ... + 1784802.

It is an arithmetic number, because the mean of its divisors is an integer number (41643630).

Almost surely, 2^271278428 is an apocalyptic number.

It is an amenable number.

271278428 is a deficient number, since it is larger than the sum of its proper divisors (228445132).

271278428 is a wasteful number, since it uses less digits than its factorization.

271278428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569476 (or 3569474 counting only the distinct ones).

The product of its digits is 100352, while the sum is 41.

The square root of 271278428 is about 16470.5321104086. The cubic root of 271278428 is about 647.3489084609.

The spelling of 271278428 in words is "two hundred seventy-one million, two hundred seventy-eight thousand, four hundred twenty-eight".