23724241 has 4 divisors (see below), whose sum is σ = 23776612. Its totient is φ = 23671872.

The previous prime is 23724229. The next prime is 23724251. The reversal of 23724241 is 14242732.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15968016 + 7756225 = 3996^2 + 2785^2 .

It is a cyclic number.

It is not a de Polignac number, because 23724241 - 2⁵ = 23724209 is a prime.

It is a super-2 number, since 2×23724241² = 1125679222052162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23724251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25500 + ... + 26413.

It is an arithmetic number, because the mean of its divisors is an integer number (5944153).

Almost surely, 2^23724241 is an apocalyptic number.

It is an amenable number.

23724241 is a deficient number, since it is larger than the sum of its proper divisors (52371).

23724241 is an equidigital number, since it uses as much as digits as its factorization.

23724241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52370.

The product of its digits is 2688, while the sum is 25.

The square root of 23724241 is about 4870.7536377854. The cubic root of 23724241 is about 287.3408964668.

Adding to 23724241 its reverse (14242732), we get a palindrome (37966973).

The spelling of 23724241 in words is "twenty-three million, seven hundred twenty-four thousand, two hundred forty-one".