20233142 has 16 divisors (see below), whose sum is σ = 31460352. Its totient is φ = 9749160.

The previous prime is 20233141. The next prime is 20233153. The reversal of 20233142 is 24133202.

It is a self number, because there is not a number n which added to its sum of digits gives 20233142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18503 + ... + 19565.

It is an arithmetic number, because the mean of its divisors is an integer number (1966272).

Almost surely, 2^20233142 is an apocalyptic number.

20233142 is a deficient number, since it is larger than the sum of its proper divisors (11227210).

20233142 is a wasteful number, since it uses less digits than its factorization.

20233142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20233142 is about 4498.1264988882. The cubic root of 20233142 is about 272.4924308421.

Adding to 20233142 its reverse (24133202), we get a palindrome (44366344).

The spelling of 20233142 in words is "twenty million, two hundred thirty-three thousand, one hundred forty-two".