439426438 has 32 divisors (see below), whose sum is σ = 779956128. Its totient is φ = 183398400.

The previous prime is 439426391. The next prime is 439426447. The reversal of 439426438 is 834624934.

It is a junction number, because it is equal to n+sod(n) for n = 439426394 and 439426403.

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 15 ways as a sum of consecutive naturals, for example, 1006 + ... + 29662.

It is an arithmetic number, because the mean of its divisors is an integer number (24373629).

Almost surely, 2^439426438 is an apocalyptic number.

439426438 is a deficient number, since it is larger than the sum of its proper divisors (340529690).

439426438 is a wasteful number, since it uses less digits than its factorization.

439426438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28728.

The product of its digits is 497664, while the sum is 43.

The square root of 439426438 is about 20962.5007573047. The cubic root of 439426438 is about 760.2598591998.

The spelling of 439426438 in words is "four hundred thirty-nine million, four hundred twenty-six thousand, four hundred thirty-eight".