20346271 has 6 divisors (see below), whose sum is σ = 22364216. Its totient is φ = 18496500.

The previous prime is 20346251. The next prime is 20346301. The reversal of 20346271 is 17264302.

It is a de Polignac number, because none of the positive numbers 2^k-20346271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83955 + ... + 84196.

Almost surely, 2^20346271 is an apocalyptic number.

20346271 is a deficient number, since it is larger than the sum of its proper divisors (2017945).

20346271 is a wasteful number, since it uses less digits than its factorization.

20346271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168173 (or 168162 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 20346271 is about 4510.6840944584. The cubic root of 20346271 is about 272.9993470088. Note that the first 3 decimals are identical.

The spelling of 20346271 in words is "twenty million, three hundred forty-six thousand, two hundred seventy-one".