400043024143 has 16 divisors (see below), whose sum is σ = 464910672384. Its totient is φ = 337110449760.

The previous prime is 400043024113. The next prime is 400043024167. The reversal of 400043024143 is 341420340004.

It is a de Polignac number, because none of the positive numbers 2^k-400043024143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400043024113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666696 + ... + 1115602.

It is an arithmetic number, because the mean of its divisors is an integer number (29056917024).

Almost surely, 2^400043024143 is an apocalyptic number.

400043024143 is a deficient number, since it is larger than the sum of its proper divisors (64867648241).

400043024143 is a wasteful number, since it uses less digits than its factorization.

400043024143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451062.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 400043024143 its reverse (341420340004), we get a palindrome (741463364147).

The spelling of 400043024143 in words is "four hundred billion, forty-three million, twenty-four thousand, one hundred forty-three".