23720241 has 8 divisors (see below), whose sum is σ = 31653184. Its totient is φ = 15800400.

The previous prime is 23720237. The next prime is 23720243. The reversal of 23720241 is 14202732.

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

It is not a de Polignac number, because 23720241 - 2² = 23720237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23720243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2316 + ... + 7266.

It is an arithmetic number, because the mean of its divisors is an integer number (3956648).

Almost surely, 2^23720241 is an apocalyptic number.

It is an amenable number.

23720241 is a deficient number, since it is larger than the sum of its proper divisors (7932943).

23720241 is a wasteful number, since it uses less digits than its factorization.

23720241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 23720241 is about 4870.3430064011. The cubic root of 23720241 is about 287.3247466254.

Adding to 23720241 its reverse (14202732), we get a palindrome (37922973).

The spelling of 23720241 in words is "twenty-three million, seven hundred twenty thousand, two hundred forty-one".