20420000026 has 8 divisors (see below), whose sum is σ = 30631668084. Its totient is φ = 10209444000.

The previous prime is 20419999949. The next prime is 20420000063. The reversal of 20420000026 is 62000002402.

It can be written as a sum of positive squares in 2 ways, for example, as 18639075625 + 1780924401 = 136525^2 + 42201^2 .

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 = 20419999964 and 20420000009.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230475 + ... + 306526.

Almost surely, 2^20420000026 is an apocalyptic number.

20420000026 is a deficient number, since it is larger than the sum of its proper divisors (10211668058).

20420000026 is a wasteful number, since it uses less digits than its factorization.

20420000026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556016.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20420000026 its reverse (62000002402), we get a palindrome (82420002428).

The spelling of 20420000026 in words is "twenty billion, four hundred twenty million, twenty-six", and thus it is an aban number.