23724042 has 8 divisors (see below), whose sum is σ = 47448096. Its totient is φ = 7908012.

The previous prime is 23724031. The next prime is 23724047. The reversal of 23724042 is 24042732.

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

23724042 is an admirable number.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (23724047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976998 + ... + 1977009.

It is an arithmetic number, because the mean of its divisors is an integer number (5931012).

Almost surely, 2^23724042 is an apocalyptic number.

23724042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23724042 is a wasteful number, since it uses less digits than its factorization.

23724042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954012.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 23724042 is about 4870.7332096924. The cubic root of 23724042 is about 287.3400930551.

Adding to 23724042 its reverse (24042732), we get a palindrome (47766774).

The spelling of 23724042 in words is "twenty-three million, seven hundred twenty-four thousand, forty-two".