20224242420 has 48 divisors (see below), whose sum is σ = 56634684288. Its totient is φ = 5392483200.

The previous prime is 20224242407. The next prime is 20224242449. The reversal of 20224242420 is 2424242202.

It is a congruent number.

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, 687657 + ... + 716463.

It is an arithmetic number, because the mean of its divisors is an integer number (1179889256).

Almost surely, 2^20224242420 is an apocalyptic number.

20224242420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20224242420 is an abundant number, since it is smaller than the sum of its proper divisors (36410441868).

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

20224242420 is a wasteful number, since it uses less digits than its factorization.

20224242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40520 (or 40518 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20224242420 its reverse (2424242202), we get a palindrome (22648484622).

The spelling of 20224242420 in words is "twenty billion, two hundred twenty-four million, two hundred forty-two thousand, four hundred twenty".