20348271 has 6 divisors (see below), whose sum is σ = 29391960. Its totient is φ = 13565508.

The previous prime is 20348257. The next prime is 20348281. The reversal of 20348271 is 17284302.

It is not a de Polignac number, because 20348271 - 2²² = 16153967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20348281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1130451 + ... + 1130468.

It is an arithmetic number, because the mean of its divisors is an integer number (4898660).

Almost surely, 2^20348271 is an apocalyptic number.

20348271 is a deficient number, since it is larger than the sum of its proper divisors (9043689).

20348271 is a wasteful number, since it uses less digits than its factorization.

20348271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260925 (or 2260922 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20348271 is about 4510.9057848729. The cubic root of 20348271 is about 273.0082918224.

The spelling of 20348271 in words is "twenty million, three hundred forty-eight thousand, two hundred seventy-one".