42243434234 has 16 divisors (see below), whose sum is σ = 66225940200. Its totient is φ = 20183138304.

The previous prime is 42243434203. The next prime is 42243434251. The reversal of 42243434234 is 43243434224.

It can be written as a sum of positive squares in 4 ways, for example, as 33034153009 + 9209281225 = 181753^2 + 95965^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42243434194 and 42243434203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3748679 + ... + 3759930.

Almost surely, 2^42243434234 is an apocalyptic number.

42243434234 is a deficient number, since it is larger than the sum of its proper divisors (23982505966).

42243434234 is a wasteful number, since it uses less digits than its factorization.

42243434234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508737.

The product of its digits is 221184, while the sum is 35.

Adding to 42243434234 its reverse (43243434224), we get a palindrome (85486868458).

The spelling of 42243434234 in words is "forty-two billion, two hundred forty-three million, four hundred thirty-four thousand, two hundred thirty-four".