20463240424 has 64 divisors (see below), whose sum is σ = 43052601600. Its totient is φ = 9036460800.

The previous prime is 20463240409. The next prime is 20463240443. The reversal of 20463240424 is 42404236402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2336694 + ... + 2345434.

It is an arithmetic number, because the mean of its divisors is an integer number (672696900).

Almost surely, 2^20463240424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20463240424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21526300800).

20463240424 is an abundant number, since it is smaller than the sum of its proper divisors (22589361176).

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

20463240424 is a wasteful number, since it uses less digits than its factorization.

20463240424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9514 (or 9510 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 20463240424 its reverse (42404236402), we get a palindrome (62867476826).

The spelling of 20463240424 in words is "twenty billion, four hundred sixty-three million, two hundred forty thousand, four hundred twenty-four".