20023234 has 16 divisors (see below), whose sum is σ = 37446336. Its totient is φ = 7801200.

The previous prime is 20023187. The next prime is 20023259. The reversal of 20023234 is 43232002.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64857 + ... + 65164.

It is an arithmetic number, because the mean of its divisors is an integer number (2340396).

Almost surely, 2^20023234 is an apocalyptic number.

20023234 is a deficient number, since it is larger than the sum of its proper divisors (17423102).

20023234 is a wasteful number, since it uses less digits than its factorization.

20023234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130041.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 20023234 is about 4474.7328411873. The cubic root of 20023234 is about 271.5468322813.

Adding to 20023234 its reverse (43232002), we get a palindrome (63255236).

The spelling of 20023234 in words is "twenty million, twenty-three thousand, two hundred thirty-four".