271720020 has 144 divisors (see below), whose sum is σ = 900910080. Its totient is φ = 60783360.

The previous prime is 271719961. The next prime is 271720021. The reversal of 271720020 is 20027172.

271720020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271720021) 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 47 ways as a sum of consecutive naturals, for example, 92941 + ... + 95819.

It is an arithmetic number, because the mean of its divisors is an integer number (6256320).

Almost surely, 2^271720020 is an apocalyptic number.

271720020 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 271720020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450455040).

271720020 is an abundant number, since it is smaller than the sum of its proper divisors (629190060).

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

271720020 is a wasteful number, since it uses less digits than its factorization.

271720020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 271720020 is about 16483.9321765166. The cubic root of 271720020 is about 647.6999735147.

Adding to 271720020 its reverse (20027172), we get a palindrome (291747192).

The spelling of 271720020 in words is "two hundred seventy-one million, seven hundred twenty thousand, twenty".