20271441 has 16 divisors (see below), whose sum is σ = 28529280. Its totient is φ = 12777600.

The previous prime is 20271421. The next prime is 20271451. The reversal of 20271441 is 14417202.

It is a happy number.

It is not a de Polignac number, because 20271441 - 2¹⁰ = 20270417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20271401) 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, 4491 + ... + 7791.

It is an arithmetic number, because the mean of its divisors is an integer number (1783080).

Almost surely, 2^20271441 is an apocalyptic number.

It is an amenable number.

20271441 is a deficient number, since it is larger than the sum of its proper divisors (8257839).

20271441 is a wasteful number, since it uses less digits than its factorization.

20271441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 20271441 is about 4502.3817030545. The cubic root of 20271441 is about 272.6642547024.

Adding to 20271441 its reverse (14417202), we get a palindrome (34688643).

The spelling of 20271441 in words is "twenty million, two hundred seventy-one thousand, four hundred forty-one".