20434203626 has 16 divisors (see below), whose sum is σ = 32459528520. Its totient is φ = 9614553600.

The previous prime is 20434203623. The next prime is 20434203631. The reversal of 20434203626 is 62630243402.

It can be written as a sum of positive squares in 4 ways, for example, as 19515810601 + 918393025 = 139699^2 + 30305^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20434203592 and 20434203601.

It is not an unprimeable number, because it can be changed into a prime (20434203623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182990 + ... + 272678.

Almost surely, 2^20434203626 is an apocalyptic number.

20434203626 is a deficient number, since it is larger than the sum of its proper divisors (12025324894).

20434203626 is a wasteful number, since it uses less digits than its factorization.

20434203626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96409.

The product of its (nonzero) digits is 41472, while the sum is 32.

The spelling of 20434203626 in words is "twenty billion, four hundred thirty-four million, two hundred three thousand, six hundred twenty-six".