20136339 has 24 divisors (see below), whose sum is σ = 30719520. Its totient is φ = 12684672.

The previous prime is 20136331. The next prime is 20136367. The reversal of 20136339 is 93363102.

20136339 is a `hidden beast` number, since 20 + 1 + 3 + 633 + 9 = 666.

It is not a de Polignac number, because 20136339 - 2³ = 20136331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20136331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17877 + ... + 18969.

It is an arithmetic number, because the mean of its divisors is an integer number (1279980).

Almost surely, 2^20136339 is an apocalyptic number.

20136339 is a deficient number, since it is larger than the sum of its proper divisors (10583181).

20136339 is a wasteful number, since it uses less digits than its factorization.

20136339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1208 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 20136339 is about 4487.3532287976. The cubic root of 20136339 is about 272.0571670139.

The spelling of 20136339 in words is "twenty million, one hundred thirty-six thousand, three hundred thirty-nine".