23920845 has 32 divisors (see below), whose sum is σ = 41913984. Its totient is φ = 11577600.

The previous prime is 23920811. The next prime is 23920877. The reversal of 23920845 is 54802932.

It is a happy number.

It is not a de Polignac number, because 23920845 - 2⁹ = 23920333 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10890 + ... + 12900.

It is an arithmetic number, because the mean of its divisors is an integer number (1309812).

Almost surely, 2^23920845 is an apocalyptic number.

It is an amenable number.

23920845 is a deficient number, since it is larger than the sum of its proper divisors (17993139).

23920845 is a wasteful number, since it uses less digits than its factorization.

23920845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 23920845 is about 4890.8940900412. The cubic root of 23920845 is about 288.1324501691.

The spelling of 23920845 in words is "twenty-three million, nine hundred twenty thousand, eight hundred forty-five".