23840641 has 8 divisors (see below), whose sum is σ = 26051904. Its totient is φ = 21636720.

The previous prime is 23840633. The next prime is 23840651. The reversal of 23840641 is 14604832.

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 23840641 - 2³ = 23840633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23840651) 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, 6715 + ... + 9631.

It is an arithmetic number, because the mean of its divisors is an integer number (3256488).

Almost surely, 2^23840641 is an apocalyptic number.

It is an amenable number.

23840641 is a deficient number, since it is larger than the sum of its proper divisors (2211263).

23840641 is a wasteful number, since it uses less digits than its factorization.

23840641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 23840641 is about 4882.6878868099. The cubic root of 23840641 is about 287.8100639687.

The spelling of 23840641 in words is "twenty-three million, eight hundred forty thousand, six hundred forty-one".