439140044 has 12 divisors (see below), whose sum is σ = 878280144. Its totient is φ = 188202864.

The previous prime is 439140029. The next prime is 439140061. The reversal of 439140044 is 440041934.

439140044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 439139989 and 439140016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7841759 + ... + 7841814.

It is an arithmetic number, because the mean of its divisors is an integer number (73190012).

Almost surely, 2^439140044 is an apocalyptic number.

It is an amenable number.

439140044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

439140044 is a wasteful number, since it uses less digits than its factorization.

439140044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15683584 (or 15683582 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 439140044 is about 20955.6685409939. The cubic root of 439140044 is about 760.0946581083.

Adding to 439140044 its reverse (440041934), we get a palindrome (879181978).

The spelling of 439140044 in words is "four hundred thirty-nine million, one hundred forty thousand, forty-four".