20271160 has 64 divisors (see below), whose sum is σ = 56145600. Its totient is φ = 6414336.

The previous prime is 20271131. The next prime is 20271187. The reversal of 20271160 is 6117202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856 + ... + 6424.

It is an arithmetic number, because the mean of its divisors is an integer number (877275).

Almost surely, 2^20271160 is an apocalyptic number.

20271160 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 20271160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28072800).

20271160 is an abundant number, since it is smaller than the sum of its proper divisors (35874440).

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

20271160 is a wasteful number, since it uses less digits than its factorization.

20271160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5600 (or 5596 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 20271160 is about 4502.3504972403. The cubic root of 20271160 is about 272.6629948181.

Adding to 20271160 its reverse (6117202), we get a palindrome (26388362).

The spelling of 20271160 in words is "twenty million, two hundred seventy-one thousand, one hundred sixty".