4000044408 has 32 divisors (see below), whose sum is σ = 10188795600. Its totient is φ = 1308190208.

The previous prime is 4000044403. The next prime is 4000044409. The reversal of 4000044408 is 8044400004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000044401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1571073 + ... + 1573616.

Almost surely, 2^4000044408 is an apocalyptic number.

It is an amenable number.

4000044408 is an abundant number, since it is smaller than the sum of its proper divisors (6188751192).

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

4000044408 is a wasteful number, since it uses less digits than its factorization.

4000044408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144751 (or 3144747 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 4000044408 is about 63245.9042784590. The cubic root of 4000044408 is about 1587.4069263886.

The spelling of 4000044408 in words is "four billion, forty-four thousand, four hundred eight".