2439509009 has 32 divisors (see below), whose sum is σ = 3094118400. Its totient is φ = 1876115520.

The previous prime is 2439508997. The next prime is 2439509057. The reversal of 2439509009 is 9009059342.

It is a cyclic number.

It is not a de Polignac number, because 2439509009 - 2¹⁶ = 2439443473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2439500009) 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, 187487 + ... + 200075.

It is an arithmetic number, because the mean of its divisors is an integer number (96691200).

Almost surely, 2^2439509009 is an apocalyptic number.

It is an amenable number.

2439509009 is a deficient number, since it is larger than the sum of its proper divisors (654609391).

2439509009 is a wasteful number, since it uses less digits than its factorization.

2439509009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12693.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 2439509009 is about 49391.3859797435. The cubic root of 2439509009 is about 1346.1727924302.

The spelling of 2439509009 in words is "two billion, four hundred thirty-nine million, five hundred nine thousand, nine".