43221042434 has 16 divisors (see below), whose sum is σ = 69478717248. Its totient is φ = 20112258672.

The previous prime is 43221042427. The next prime is 43221042461. The reversal of 43221042434 is 43424012234.

It is a junction number, because it is equal to n+sod(n) for n = 43221042397 and 43221042406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12695432 + ... + 12698835.

It is an arithmetic number, because the mean of its divisors is an integer number (4342419828).

Almost surely, 2^43221042434 is an apocalyptic number.

43221042434 is a deficient number, since it is larger than the sum of its proper divisors (26257674814).

43221042434 is a wasteful number, since it uses less digits than its factorization.

43221042434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25394329.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 43221042434 its reverse (43424012234), we get a palindrome (86645054668).

The spelling of 43221042434 in words is "forty-three billion, two hundred twenty-one million, forty-two thousand, four hundred thirty-four".