4408384509 has 6 divisors (see below), whose sum is σ = 6367666526. Its totient is φ = 2938923000.

The previous prime is 4408384483. The next prime is 4408384523. The reversal of 4408384509 is 9054838044.

It is a happy number.

4408384509 is a `hidden beast` number, since 440 + 83 + 84 + 50 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4131661284 + 276723225 = 64278^2 + 16635^2 .

It is not a de Polignac number, because 4408384509 - 2¹³ = 4408376317 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 (4408384559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244910242 + ... + 244910259.

Almost surely, 2^4408384509 is an apocalyptic number.

It is an amenable number.

4408384509 is a deficient number, since it is larger than the sum of its proper divisors (1959282017).

4408384509 is a wasteful number, since it uses less digits than its factorization.

4408384509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489820507 (or 489820504 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The square root of 4408384509 is about 66395.6663420136. Note that the first 3 decimals coincide. The cubic root of 4408384509 is about 1639.6827302429.

The spelling of 4408384509 in words is "four billion, four hundred eight million, three hundred eighty-four thousand, five hundred nine".