4000044031 has 4 divisors (see below), whose sum is σ = 4002284232. Its totient is φ = 3997803832.

The previous prime is 4000043923. The next prime is 4000044077. The reversal of 4000044031 is 1304400004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4000044031 - 2⁷ = 4000043903 is a prime.

It is a super-2 number, since 2×4000044031² = 32000704499877457922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4000043996 and 4000044014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000024031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117420 + ... + 1120993.

It is an arithmetic number, because the mean of its divisors is an integer number (1000571058).

Almost surely, 2^4000044031 is an apocalyptic number.

4000044031 is a deficient number, since it is larger than the sum of its proper divisors (2240201).

4000044031 is a wasteful number, since it uses less digits than its factorization.

4000044031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240200.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4000044031 is about 63245.9012980288. The cubic root of 4000044031 is about 1587.4068765181.

Adding to 4000044031 its reverse (1304400004), we get a palindrome (5304444035).

The spelling of 4000044031 in words is "four billion, forty-four thousand, thirty-one".