24420200420 has 48 divisors (see below), whose sum is σ = 63936528768. Its totient is φ = 7611490560.

The previous prime is 24420200393. The next prime is 24420200423. The reversal of 24420200420 is 2400202442.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 24420200392 and 24420200401.

It is not an unprimeable number, because it can be changed into a prime (24420200423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7927097 + ... + 7930176.

It is an arithmetic number, because the mean of its divisors is an integer number (1332011016).

Almost surely, 2^24420200420 is an apocalyptic number.

24420200420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24420200420 is an abundant number, since it is smaller than the sum of its proper divisors (39516328348).

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

24420200420 is a wasteful number, since it uses less digits than its factorization.

24420200420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857300 (or 15857298 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 24420200420 its reverse (2400202442), we get a palindrome (26820402862).

The spelling of 24420200420 in words is "twenty-four billion, four hundred twenty million, two hundred thousand, four hundred twenty".