20271039 has 8 divisors (see below), whose sum is σ = 27048960. Its totient is φ = 13503576.

The previous prime is 20271037. The next prime is 20271047. The reversal of 20271039 is 93017202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20271039 - 2¹ = 20271037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20271037) 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 7 ways as a sum of consecutive naturals, for example, 5602 + ... + 8480.

It is an arithmetic number, because the mean of its divisors is an integer number (3381120).

Almost surely, 2^20271039 is an apocalyptic number.

20271039 is a deficient number, since it is larger than the sum of its proper divisors (6777921).

20271039 is a wasteful number, since it uses less digits than its factorization.

20271039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 20271039 is about 4502.3370597946. The cubic root of 20271039 is about 272.6624523021.

The spelling of 20271039 in words is "twenty million, two hundred seventy-one thousand, thirty-nine".