23643142 has 32 divisors (see below), whose sum is σ = 38320128. Its totient is φ = 10920000.

The previous prime is 23643133. The next prime is 23643143. The reversal of 23643142 is 24134632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23643143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180417 + ... + 180547.

It is an arithmetic number, because the mean of its divisors is an integer number (1197504).

Almost surely, 2^23643142 is an apocalyptic number.

23643142 is a deficient number, since it is larger than the sum of its proper divisors (14676986).

23643142 is a wasteful number, since it uses less digits than its factorization.

23643142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its digits is 3456, while the sum is 25.

The square root of 23643142 is about 4862.4214132467. The cubic root of 23643142 is about 287.0131070835.

Adding to 23643142 its reverse (24134632), we get a palindrome (47777774).

The spelling of 23643142 in words is "twenty-three million, six hundred forty-three thousand, one hundred forty-two".