23740243 has 8 divisors (see below), whose sum is σ = 24269760. Its totient is φ = 23215080.

The previous prime is 23740231. The next prime is 23740247. The reversal of 23740243 is 34204732.

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

It is a cyclic number.

It is not a de Polignac number, because 23740243 - 2¹⁷ = 23609171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23740247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11496 + ... + 13402.

It is an arithmetic number, because the mean of its divisors is an integer number (3033720).

Almost surely, 2^23740243 is an apocalyptic number.

23740243 is a deficient number, since it is larger than the sum of its proper divisors (529517).

23740243 is a wasteful number, since it uses less digits than its factorization.

23740243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 23740243 is about 4872.3960224924. The cubic root of 23740243 is about 287.4054857565.

Adding to 23740243 its reverse (34204732), we get a palindrome (57944975).

The spelling of 23740243 in words is "twenty-three million, seven hundred forty thousand, two hundred forty-three".