20004260426 has 8 divisors (see below), whose sum is σ = 30083529060. Its totient is φ = 9976417408.

The previous prime is 20004260387. The next prime is 20004260503. The reversal of 20004260426 is 62406240002.

It can be written as a sum of positive squares in 2 ways, for example, as 19862674225 + 141586201 = 140935^2 + 11899^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20004260395 and 20004260404.

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, 12855431 + ... + 12856986.

Almost surely, 2^20004260426 is an apocalyptic number.

20004260426 is a deficient number, since it is larger than the sum of its proper divisors (10079268634).

20004260426 is a wasteful number, since it uses less digits than its factorization.

20004260426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25712808.

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 20004260426 in words is "twenty billion, four million, two hundred sixty thousand, four hundred twenty-six".