44045909 has 4 divisors (see below), whose sum is σ = 44983104. Its totient is φ = 43108716.

The previous prime is 44045891. The next prime is 44045921. The reversal of 44045909 is 90954044.

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 a cyclic number.

It is not a de Polignac number, because 44045909 - 2¹² = 44041813 is a prime.

It is a super-3 number, since 3×44045909³ (a number of 24 digits) contains 333 as substring.

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 (44045509) 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, 468527 + ... + 468620.

It is an arithmetic number, because the mean of its divisors is an integer number (11245776).

Almost surely, 2^44045909 is an apocalyptic number.

It is an amenable number.

44045909 is a deficient number, since it is larger than the sum of its proper divisors (937195).

44045909 is an equidigital number, since it uses as much as digits as its factorization.

44045909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937194.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 44045909 is about 6636.7091995958. The cubic root of 44045909 is about 353.1575747641.

The spelling of 44045909 in words is "forty-four million, forty-five thousand, nine hundred nine".