4000439996 has 24 divisors (see below), whose sum is σ = 8090782560. Its totient is φ = 1695209472.

The previous prime is 4000439977. The next prime is 4000440001. The reversal of 4000439996 is 6999340004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800165 + ... + 805148.

It is an arithmetic number, because the mean of its divisors is an integer number (337115940).

Almost surely, 2^4000439996 is an apocalyptic number.

It is an amenable number.

4000439996 is an abundant number, since it is smaller than the sum of its proper divisors (4090342564).

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

4000439996 is a wasteful number, since it uses less digits than its factorization.

4000439996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605413 (or 1605411 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 4000439996 is about 63249.0315815191. The cubic root of 4000439996 is about 1587.4592540103.

The spelling of 4000439996 in words is "four billion, four hundred thirty-nine thousand, nine hundred ninety-six".