20263339 has 4 divisors (see below), whose sum is σ = 20452824. Its totient is φ = 20073856.

The previous prime is 20263333. The next prime is 20263343. The reversal of 20263339 is 93336202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93336202 = 2 ⋅46668101.

It is a cyclic number.

It is not a de Polignac number, because 20263339 - 2¹¹ = 20261291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20263333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94582 + ... + 94795.

It is an arithmetic number, because the mean of its divisors is an integer number (5113206).

Almost surely, 2^20263339 is an apocalyptic number.

20263339 is a deficient number, since it is larger than the sum of its proper divisors (189485).

20263339 is a wasteful number, since it uses less digits than its factorization.

20263339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189484.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 20263339 is about 4501.4818671189. The cubic root of 20263339 is about 272.6279241135.

It can be divided in two parts, 20263 and 339, that added together give a palindrome (20602).

The spelling of 20263339 in words is "twenty million, two hundred sixty-three thousand, three hundred thirty-nine".