271311390 has 64 divisors (see below), whose sum is σ = 826859520. Its totient is φ = 62013600.

The previous prime is 271311361. The next prime is 271311419. The reversal of 271311390 is 93113172.

271311390 is a `hidden beast` number, since 271 + 3 + 1 + 1 + 390 = 666.

It is an interprime number because it is at equal distance from previous prime (271311361) and next prime (271311419).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 69886 + ... + 73665.

It is an arithmetic number, because the mean of its divisors is an integer number (12919680).

Almost surely, 2^271311390 is an apocalyptic number.

271311390 is an abundant number, since it is smaller than the sum of its proper divisors (555548130).

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

271311390 is a wasteful number, since it uses less digits than its factorization.

271311390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143574 (or 143568 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 271311390 is about 16471.5327155672. The cubic root of 271311390 is about 647.3751263591.

The spelling of 271311390 in words is "two hundred seventy-one million, three hundred eleven thousand, three hundred ninety".