44505309 has 4 divisors (see below), whose sum is σ = 59340416. Its totient is φ = 29670204.

The previous prime is 44505289. The next prime is 44505323. The reversal of 44505309 is 90350544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 44505309 - 2¹⁵ = 44472541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44505509) 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, 7417549 + ... + 7417554.

It is an arithmetic number, because the mean of its divisors is an integer number (14835104).

Almost surely, 2^44505309 is an apocalyptic number.

It is an amenable number.

44505309 is a deficient number, since it is larger than the sum of its proper divisors (14835107).

44505309 is a wasteful number, since it uses less digits than its factorization.

44505309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14835106.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 44505309 is about 6671.2299465691. The cubic root of 44505309 is about 354.3811449093.

The spelling of 44505309 in words is "forty-four million, five hundred five thousand, three hundred nine".