271640289 has 8 divisors (see below), whose sum is σ = 362295072. Its totient is φ = 181039520.

The previous prime is 271640279. The next prime is 271640309. The reversal of 271640289 is 982046172.

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

It is a cyclic number.

It is not a de Polignac number, because 271640289 - 2²¹ = 269543137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (271640209) 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, 229 + ... + 23309.

It is an arithmetic number, because the mean of its divisors is an integer number (45286884).

Almost surely, 2^271640289 is an apocalyptic number.

It is an amenable number.

271640289 is a deficient number, since it is larger than the sum of its proper divisors (90654783).

271640289 is a wasteful number, since it uses less digits than its factorization.

271640289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27007.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 271640289 is about 16481.5135530691. The cubic root of 271640289 is about 647.6366156282.

The spelling of 271640289 in words is "two hundred seventy-one million, six hundred forty thousand, two hundred eighty-nine".