20420044068 has 24 divisors (see below), whose sum is σ = 47742268000. Its totient is φ = 6793038720.

The previous prime is 20420044067. The next prime is 20420044091. The reversal of 20420044068 is 86044002402.

It is not an unprimeable number, because it can be changed into a prime (20420044067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1699093 + ... + 1711068.

Almost surely, 2^20420044068 is an apocalyptic number.

It is an amenable number.

20420044068 is an abundant number, since it is smaller than the sum of its proper divisors (27322223932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20420044068 is a wasteful number, since it uses less digits than its factorization.

20420044068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410667 (or 3410665 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The spelling of 20420044068 in words is "twenty billion, four hundred twenty million, forty-four thousand, sixty-eight".