4001000043 has 8 divisors (see below), whose sum is σ = 5335707088. Its totient is φ = 2666813184.

The previous prime is 4001000041. The next prime is 4001000053. The reversal of 4001000043 is 3400001004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4001000043 - 2¹ = 4001000041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4000999992 and 4001000028.

It is not an unprimeable number, because it can be changed into a prime (4001000041) 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, 111730 + ... + 143127.

It is an arithmetic number, because the mean of its divisors is an integer number (666963386).

Almost surely, 2^4001000043 is an apocalyptic number.

4001000043 is a deficient number, since it is larger than the sum of its proper divisors (1334707045).

4001000043 is a wasteful number, since it uses less digits than its factorization.

4001000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260093.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 4001000043 is about 63253.4587433762. The cubic root of 4001000043 is about 1587.5333300543.

Adding to 4001000043 its reverse (3400001004), we get a palindrome (7401001047).

The spelling of 4001000043 in words is "four billion, one million, forty-three", and thus it is an aban number.