1439509089 has 16 divisors (see below), whose sum is σ = 1957342464. Its totient is φ = 940851600.

The previous prime is 1439509079. The next prime is 1439509111. The reversal of 1439509089 is 9809059341.

It is not a de Polignac number, because 1439509089 - 2¹² = 1439504993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1439509009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10554 + ... + 54684.

It is an arithmetic number, because the mean of its divisors is an integer number (122333904).

Almost surely, 2^1439509089 is an apocalyptic number.

It is an amenable number.

1439509089 is a deficient number, since it is larger than the sum of its proper divisors (517833375).

1439509089 is a wasteful number, since it uses less digits than its factorization.

1439509089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44348.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 1439509089 is about 37940.8630502787. The cubic root of 1439509089 is about 1129.1148964783.

The spelling of 1439509089 in words is "one billion, four hundred thirty-nine million, five hundred nine thousand, eighty-nine".