23444545 has 4 divisors (see below), whose sum is σ = 28133460. Its totient is φ = 18755632.

The previous prime is 23444543. The next prime is 23444549. The reversal of 23444545 is 54544432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4443664 + 19000881 = 2108^2 + 4359^2 .

It is a cyclic number.

It is not a de Polignac number, because 23444545 - 2¹ = 23444543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23444543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2344450 + ... + 2344459.

It is an arithmetic number, because the mean of its divisors is an integer number (7033365).

Almost surely, 2^23444545 is an apocalyptic number.

It is an amenable number.

23444545 is a deficient number, since it is larger than the sum of its proper divisors (4688915).

23444545 is an equidigital number, since it uses as much as digits as its factorization.

23444545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688914.

The product of its digits is 38400, while the sum is 31.

The square root of 23444545 is about 4841.9567325617. The cubic root of 23444545 is about 286.2072315857.

Adding to 23444545 its reverse (54544432), we get a palindrome (77988977).

It can be divided in two parts, 2344 and 4545, that added together give a square (6889 = 83²).

The spelling of 23444545 in words is "twenty-three million, four hundred forty-four thousand, five hundred forty-five".