20273871 has 16 divisors (see below), whose sum is σ = 28080000. Its totient is φ = 12995808.

The previous prime is 20273863. The next prime is 20273887. The reversal of 20273871 is 17837202.

It is not a de Polignac number, because 20273871 - 2³ = 20273863 is a prime.

It is a super-2 number, since 2×20273871² = 822059690649282, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20273821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40380 + ... + 40878.

It is an arithmetic number, because the mean of its divisors is an integer number (1755000).

Almost surely, 2^20273871 is an apocalyptic number.

20273871 is a deficient number, since it is larger than the sum of its proper divisors (7806129).

20273871 is a wasteful number, since it uses less digits than its factorization.

20273871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 20273871 is about 4502.6515521412. The cubic root of 20273871 is about 272.6751493015.

The spelling of 20273871 in words is "twenty million, two hundred seventy-three thousand, eight hundred seventy-one".