20304302424 has 128 divisors (see below), whose sum is σ = 61285593600. Its totient is φ = 5476101120.

The previous prime is 20304302413. The next prime is 20304302441. The reversal of 20304302424 is 42420340302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20304302394 and 20304302403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 885634 + ... + 908270.

It is an arithmetic number, because the mean of its divisors is an integer number (478793700).

Almost surely, 2^20304302424 is an apocalyptic number.

20304302424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20304302424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30642796800).

20304302424 is an abundant number, since it is smaller than the sum of its proper divisors (40981291176).

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

20304302424 is a wasteful number, since it uses less digits than its factorization.

20304302424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22953 (or 22949 counting only the distinct ones).

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

Adding to 20304302424 its reverse (42420340302), we get a palindrome (62724642726).

The spelling of 20304302424 in words is "twenty billion, three hundred four million, three hundred two thousand, four hundred twenty-four".