439482309 has 16 divisors (see below), whose sum is σ = 670121088. Its totient is φ = 250970112.

The previous prime is 439482287. The next prime is 439482341. The reversal of 439482309 is 903284934.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-439482309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439482349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31429 + ... + 43205.

It is an arithmetic number, because the mean of its divisors is an integer number (41882568).

Almost surely, 2^439482309 is an apocalyptic number.

It is an amenable number.

439482309 is a deficient number, since it is larger than the sum of its proper divisors (230638779).

439482309 is a wasteful number, since it uses less digits than its factorization.

439482309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13564.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 439482309 is about 20963.8333565214. The cubic root of 439482309 is about 760.2920789866.

The spelling of 439482309 in words is "four hundred thirty-nine million, four hundred eighty-two thousand, three hundred nine".