44989209 has 32 divisors (see below), whose sum is σ = 68688000. Its totient is φ = 29090880.

The previous prime is 44989201. The next prime is 44989213. The reversal of 44989209 is 90298944.

It is not a de Polignac number, because 44989209 - 2³ = 44989201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44989201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213114 + ... + 213324.

It is an arithmetic number, because the mean of its divisors is an integer number (2146500).

Almost surely, 2^44989209 is an apocalyptic number.

It is an amenable number.

44989209 is a deficient number, since it is larger than the sum of its proper divisors (23698791).

44989209 is a wasteful number, since it uses less digits than its factorization.

44989209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 44989209 is about 6707.3995706235. The cubic root of 44989209 is about 355.6608967423.

The spelling of 44989209 in words is "forty-four million, nine hundred eighty-nine thousand, two hundred nine".