2009449053 has 20 divisors (see below), whose sum is σ = 3017030940. Its totient is φ = 1332821952.

The previous prime is 2009449051. The next prime is 2009449069. The reversal of 2009449053 is 3509449002.

2009449053 is a `hidden beast` number, since 200 + 9 + 449 + 0 + 5 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1931338809 + 78110244 = 43947^2 + 8838^2 .

It is not a de Polignac number, because 2009449053 - 2¹ = 2009449051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2009448999 and 2009449017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009449051) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47008 + ... + 78921.

It is an arithmetic number, because the mean of its divisors is an integer number (150851547).

Almost surely, 2^2009449053 is an apocalyptic number.

It is an amenable number.

2009449053 is a deficient number, since it is larger than the sum of its proper divisors (1007581887).

2009449053 is a wasteful number, since it uses less digits than its factorization.

2009449053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126138 (or 126129 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2009449053 is about 44826.8786890187. The cubic root of 2009449053 is about 1261.9021101016.

The spelling of 2009449053 in words is "two billion, nine million, four hundred forty-nine thousand, fifty-three".