20202408330 has 128 divisors (see below), whose sum is σ = 54669323520. Its totient is φ = 4743352320.

The previous prime is 20202408329. The next prime is 20202408341. The reversal of 20202408330 is 3380420202.

It is a self number, because there is not a number n which added to its sum of digits gives 20202408330.

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 63 ways as a sum of consecutive naturals, for example, 927970 + ... + 949490.

It is an arithmetic number, because the mean of its divisors is an integer number (427104090).

Almost surely, 2^20202408330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202408330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27334661760).

20202408330 is an abundant number, since it is smaller than the sum of its proper divisors (34466915190).

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

20202408330 is a wasteful number, since it uses less digits than its factorization.

20202408330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21656.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20202408330 its reverse (3380420202), we get a palindrome (23582828532).

The spelling of 20202408330 in words is "twenty billion, two hundred two million, four hundred eight thousand, three hundred thirty".