23805245 has 8 divisors (see below), whose sum is σ = 29338584. Its totient is φ = 18529344.

The previous prime is 23805239. The next prime is 23805247. The reversal of 23805245 is 54250832.

It can be written as a sum of positive squares in 4 ways, for example, as 10686361 + 13118884 = 3269^2 + 3622^2 .

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 23805245 - 2⁶ = 23805181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23805247) 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, 64154 + ... + 64523.

It is an arithmetic number, because the mean of its divisors is an integer number (3667323).

Almost surely, 2^23805245 is an apocalyptic number.

It is an amenable number.

23805245 is a deficient number, since it is larger than the sum of its proper divisors (5533339).

23805245 is a wasteful number, since it uses less digits than its factorization.

23805245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128719.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 23805245 is about 4879.0618975373. The cubic root of 23805245 is about 287.6675570220.

It can be divided in two parts, 23805 and 245, that multiplied together give a square (5832225 = 2415²).

The spelling of 23805245 in words is "twenty-three million, eight hundred five thousand, two hundred forty-five".