20434203602 has 8 divisors (see below), whose sum is σ = 30726248700. Its totient is φ = 10192120704.

The previous prime is 20434203599. The next prime is 20434203617. The reversal of 20434203602 is 20630243402.

It can be written as a sum of positive squares in 2 ways, for example, as 20429270761 + 4932841 = 142931^2 + 2221^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12489527 + ... + 12491162.

Almost surely, 2^20434203602 is an apocalyptic number.

20434203602 is a deficient number, since it is larger than the sum of its proper divisors (10292045098).

20434203602 is a wasteful number, since it uses less digits than its factorization.

20434203602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24981100.

The product of its (nonzero) digits is 6912, while the sum is 26.

The spelling of 20434203602 in words is "twenty billion, four hundred thirty-four million, two hundred three thousand, six hundred two".