271218740 has 48 divisors (see below), whose sum is σ = 617576400. Its totient is φ = 99456000.

The previous prime is 271218707. The next prime is 271218743. The reversal of 271218740 is 47812172.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 67699984 + 203518756 = 8228^2 + 14266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 271218697 and 271218706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271218743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35240 + ... + 42240.

It is an arithmetic number, because the mean of its divisors is an integer number (12866175).

Almost surely, 2^271218740 is an apocalyptic number.

271218740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 271218740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308788200).

271218740 is an abundant number, since it is smaller than the sum of its proper divisors (346357660).

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

271218740 is a wasteful number, since it uses less digits than its factorization.

271218740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7172 (or 7170 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 271218740 is about 16468.7200474111. The cubic root of 271218740 is about 647.3014273593.

The spelling of 271218740 in words is "two hundred seventy-one million, two hundred eighteen thousand, seven hundred forty".