23520841 has 4 divisors (see below), whose sum is σ = 24758800. Its totient is φ = 22282884.

The previous prime is 23520811. The next prime is 23520853. The reversal of 23520841 is 14802532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23520841 - 2⁷ = 23520713 is a prime.

It is a super-2 number, since 2×23520841² = 1106459922694562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23520811) 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 3 ways as a sum of consecutive naturals, for example, 618951 + ... + 618988.

It is an arithmetic number, because the mean of its divisors is an integer number (6189700).

Almost surely, 2^23520841 is an apocalyptic number.

It is an amenable number.

23520841 is a deficient number, since it is larger than the sum of its proper divisors (1237959).

23520841 is a wasteful number, since it uses less digits than its factorization.

23520841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237958.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 23520841 is about 4849.8289660564. The cubic root of 23520841 is about 286.5173651665.

The spelling of 23520841 in words is "twenty-three million, five hundred twenty thousand, eight hundred forty-one".