43431342004 has 6 divisors (see below), whose sum is σ = 76004848514. Its totient is φ = 21715671000.

The previous prime is 43431341977. The next prime is 43431342047. The reversal of 43431342004 is 40024313434.

It can be written as a sum of positive squares in only one way, i.e., 29066840100 + 14364501904 = 170490^2 + 119852^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5428917747 + ... + 5428917754.

Almost surely, 2^43431342004 is an apocalyptic number.

It is an amenable number.

43431342004 is a deficient number, since it is larger than the sum of its proper divisors (32573506510).

43431342004 is a wasteful number, since it uses less digits than its factorization.

43431342004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10857835505 (or 10857835503 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 43431342004 its reverse (40024313434), we get a palindrome (83455655438).

The spelling of 43431342004 in words is "forty-three billion, four hundred thirty-one million, three hundred forty-two thousand, four".