20272671 has 6 divisors (see below), whose sum is σ = 29282760. Its totient is φ = 13515108.

The previous prime is 20272663. The next prime is 20272699. The reversal of 20272671 is 17627202.

It is not a de Polignac number, because 20272671 - 2³ = 20272663 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20272621) 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, 1126251 + ... + 1126268.

It is an arithmetic number, because the mean of its divisors is an integer number (4880460).

Almost surely, 2^20272671 is an apocalyptic number.

20272671 is a deficient number, since it is larger than the sum of its proper divisors (9010089).

20272671 is a wasteful number, since it uses less digits than its factorization.

20272671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252525 (or 2252522 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 20272671 is about 4502.5182953543. The cubic root of 20272671 is about 272.6697693614.

Adding to 20272671 its reverse (17627202), we get a palindrome (37899873).

It can be divided in two parts, 20 and 272671, that added together give a triangular number (272691 = T₇₃₈).

The spelling of 20272671 in words is "twenty million, two hundred seventy-two thousand, six hundred seventy-one".