23643242 has 8 divisors (see below), whose sum is σ = 40531296. Its totient is φ = 10132812.

The previous prime is 23643227. The next prime is 23643253. The reversal of 23643242 is 24234632.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 844388 + ... + 844415.

It is an arithmetic number, because the mean of its divisors is an integer number (5066412).

Almost surely, 2^23643242 is an apocalyptic number.

23643242 is a deficient number, since it is larger than the sum of its proper divisors (16888054).

23643242 is a wasteful number, since it uses less digits than its factorization.

23643242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688812.

The product of its digits is 6912, while the sum is 26.

The square root of 23643242 is about 4862.4316961784. The cubic root of 23643242 is about 287.0135117290.

Adding to 23643242 its reverse (24234632), we get a palindrome (47877874).

The spelling of 23643242 in words is "twenty-three million, six hundred forty-three thousand, two hundred forty-two".