20424220392 has 64 divisors (see below), whose sum is σ = 53782747200. Its totient is φ = 6445578240.

The previous prime is 20424220387. The next prime is 20424220459. The reversal of 20424220392 is 29302242402.

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, 732792 + ... + 760152.

It is an arithmetic number, because the mean of its divisors is an integer number (840355425).

Almost surely, 2^20424220392 is an apocalyptic number.

It is an amenable number.

20424220392 is an abundant number, since it is smaller than the sum of its proper divisors (33358526808).

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

20424220392 is a wasteful number, since it uses less digits than its factorization.

20424220392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29026 (or 29022 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 20424220392 its reverse (29302242402), we get a palindrome (49726462794).

The spelling of 20424220392 in words is "twenty billion, four hundred twenty-four million, two hundred twenty thousand, three hundred ninety-two".