44909009 has 4 divisors (see below), whose sum is σ = 46122804. Its totient is φ = 43695216.

The previous prime is 44909003. The next prime is 44909099. The reversal of 44909009 is 90090944.

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 22771984 + 22137025 = 4772^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 44909009 - 2⁸ = 44908753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44909009.

It is not an unprimeable number, because it can be changed into a prime (44909003) 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, 606842 + ... + 606915.

It is an arithmetic number, because the mean of its divisors is an integer number (11530701).

Almost surely, 2^44909009 is an apocalyptic number.

It is an amenable number.

44909009 is a deficient number, since it is larger than the sum of its proper divisors (1213795).

44909009 is a wasteful number, since it uses less digits than its factorization.

44909009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213794.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 44909009 is about 6701.4184319441. The cubic root of 44909009 is about 355.4494314391.

The spelling of 44909009 in words is "forty-four million, nine hundred nine thousand, nine".