44999909 has 8 divisors (see below), whose sum is σ = 46683000. Its totient is φ = 43325632.

The previous prime is 44999869. The next prime is 44999951. The reversal of 44999909 is 90999944.

It can be written as a sum of positive squares in 4 ways, for example, as 2788900 + 42211009 = 1670^2 + 6497^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44999909 - 2²⁰ = 43951333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44999309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9287 + ... + 13275.

It is an arithmetic number, because the mean of its divisors is an integer number (5835375).

Almost surely, 2^44999909 is an apocalyptic number.

It is an amenable number.

44999909 is a deficient number, since it is larger than the sum of its proper divisors (1683091).

44999909 is a wasteful number, since it uses less digits than its factorization.

44999909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4407.

The product of its (nonzero) digits is 944784, while the sum is 53.

The square root of 44999909 is about 6708.1971497564. The cubic root of 44999909 is about 355.6890906879.

The spelling of 44999909 in words is "forty-four million, nine hundred ninety-nine thousand, nine hundred nine".