439064646 has 16 divisors (see below), whose sum is σ = 880993344. Its totient is φ = 145877544.

The previous prime is 439064629. The next prime is 439064671. The reversal of 439064646 is 646460934.

It is a junction number, because it is equal to n+sod(n) for n = 439064598 and 439064607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117340 + ... + 121023.

It is an arithmetic number, because the mean of its divisors is an integer number (55062084).

Almost surely, 2^439064646 is an apocalyptic number.

439064646 is an abundant number, since it is smaller than the sum of its proper divisors (441928698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

439064646 is a wasteful number, since it uses less digits than its factorization.

439064646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238675.

The product of its (nonzero) digits is 373248, while the sum is 42.

The square root of 439064646 is about 20953.8694755885. The cubic root of 439064646 is about 760.0511542207.

The spelling of 439064646 in words is "four hundred thirty-nine million, sixty-four thousand, six hundred forty-six".