16243430434 has 32 divisors (see below), whose sum is σ = 30396352896. Its totient is φ = 6324645120.

The previous prime is 16243430431. The next prime is 16243430443. The reversal of 16243430434 is 43403434261.

It is a self number, because there is not a number n which added to its sum of digits gives 16243430434.

It is not an unprimeable number, because it can be changed into a prime (16243430431) 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, 219882 + ... + 284314.

It is an arithmetic number, because the mean of its divisors is an integer number (949886028).

Almost surely, 2^16243430434 is an apocalyptic number.

16243430434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16243430434 is a deficient number, since it is larger than the sum of its proper divisors (14152922462).

16243430434 is a wasteful number, since it uses less digits than its factorization.

16243430434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66090.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 16243430434 its reverse (43403434261), we get a palindrome (59646864695).

The spelling of 16243430434 in words is "sixteen billion, two hundred forty-three million, four hundred thirty thousand, four hundred thirty-four".