20322044430 has 32 divisors (see below), whose sum is σ = 48901622400. Its totient is φ = 5404910112.

The previous prime is 20322044423. The next prime is 20322044459. The reversal of 20322044430 is 3444022302.

It is a self number, because there is not a number n which added to its sum of digits gives 20322044430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882300 + ... + 905039.

It is an arithmetic number, because the mean of its divisors is an integer number (1528175700).

Almost surely, 2^20322044430 is an apocalyptic number.

20322044430 is an abundant number, since it is smaller than the sum of its proper divisors (28579577970).

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

20322044430 is a wasteful number, since it uses less digits than its factorization.

20322044430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787728.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20322044430 its reverse (3444022302), we get a palindrome (23766066732).

The spelling of 20322044430 in words is "twenty billion, three hundred twenty-two million, forty-four thousand, four hundred thirty".