242112400420 has 48 divisors (see below), whose sum is σ = 567556532928. Its totient is φ = 85993407360.

The previous prime is 242112400403. The next prime is 242112400441. The reversal of 242112400420 is 24004211242.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 242112400391 and 242112400400.

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, 12787179 + ... + 12806098.

It is an arithmetic number, because the mean of its divisors is an integer number (11824094436).

Almost surely, 2^242112400420 is an apocalyptic number.

242112400420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242112400420 is an abundant number, since it is smaller than the sum of its proper divisors (325444132508).

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

242112400420 is a wasteful number, since it uses less digits than its factorization.

242112400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25593340 (or 25593338 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 242112400420 its reverse (24004211242), we get a palindrome (266116611662).

The spelling of 242112400420 in words is "two hundred forty-two billion, one hundred twelve million, four hundred thousand, four hundred twenty".