44644345 has 4 divisors (see below), whose sum is σ = 53573220. Its totient is φ = 35715472.

The previous prime is 44644339. The next prime is 44644349. The reversal of 44644345 is 54344644.

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 28419561 + 16224784 = 5331^2 + 4028^2 .

It is a cyclic number.

It is not a de Polignac number, because 44644345 - 2¹³ = 44636153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44644345.

It is not an unprimeable number, because it can be changed into a prime (44644349) 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, 4464430 + ... + 4464439.

It is an arithmetic number, because the mean of its divisors is an integer number (13393305).

Almost surely, 2^44644345 is an apocalyptic number.

It is an amenable number.

44644345 is a deficient number, since it is larger than the sum of its proper divisors (8928875).

44644345 is an equidigital number, since it uses as much as digits as its factorization.

44644345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928874.

The product of its digits is 92160, while the sum is 34.

The square root of 44644345 is about 6681.6423879163. The cubic root of 44644345 is about 354.7497939387.

Adding to 44644345 its reverse (54344644), we get a palindrome (98988989).

The spelling of 44644345 in words is "forty-four million, six hundred forty-four thousand, three hundred forty-five".