43405850434 has 4 divisors (see below), whose sum is σ = 65108775654. Its totient is φ = 21702925216.

The previous prime is 43405850381. The next prime is 43405850471.

43405850434 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 41431381209 + 1974469225 = 203547^2 + 44435^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10851462607 + ... + 10851462610.

Almost surely, 2^43405850434 is an apocalyptic number.

43405850434 is a deficient number, since it is larger than the sum of its proper divisors (21702925220).

43405850434 is a wasteful number, since it uses less digits than its factorization.

43405850434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21702925219.

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 43405850434 in words is "forty-three billion, four hundred five million, eight hundred fifty thousand, four hundred thirty-four".