20620443030 has 32 divisors (see below), whose sum is σ = 53988069888. Its totient is φ = 4998895200.

The previous prime is 20620443013. The next prime is 20620443037. The reversal of 20620443030 is 3034402602.

It is a happy number.

It is a super-3 number, since 3×20620443030³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620443037) 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 15 ways as a sum of consecutive naturals, for example, 31242766 + ... + 31243425.

It is an arithmetic number, because the mean of its divisors is an integer number (1687127184).

Almost surely, 2^20620443030 is an apocalyptic number.

20620443030 is an abundant number, since it is smaller than the sum of its proper divisors (33367626858).

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

20620443030 is a wasteful number, since it uses less digits than its factorization.

20620443030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62486212.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20620443030 its reverse (3034402602), we get a palindrome (23654845632).

The spelling of 20620443030 in words is "twenty billion, six hundred twenty million, four hundred forty-three thousand, thirty".