43744073434 has 8 divisors (see below), whose sum is σ = 65619107028. Its totient is φ = 21871037760.

The previous prime is 43744073431. The next prime is 43744073441. The reversal of 43744073434 is 43437044734.

It can be written as a sum of positive squares in 2 ways, for example, as 43228647225 + 515426209 = 207915^2 + 22703^2 .

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

It is not an unprimeable number, because it can be changed into a prime (43744073431) 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, 443487 + ... + 533074.

Almost surely, 2^43744073434 is an apocalyptic number.

43744073434 is a deficient number, since it is larger than the sum of its proper divisors (21875033594).

43744073434 is a wasteful number, since it uses less digits than its factorization.

43744073434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998960.

The product of its (nonzero) digits is 1354752, while the sum is 43.

The spelling of 43744073434 in words is "forty-three billion, seven hundred forty-four million, seventy-three thousand, four hundred thirty-four".