242242420 has 24 divisors (see below), whose sum is σ = 581382144. Its totient is φ = 83054496.

The previous prime is 242242409. The next prime is 242242421. The reversal of 242242420 is 24242242.

It is a happy number.

242242420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 242242391 and 242242400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242242421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865012 + ... + 865291.

It is an arithmetic number, because the mean of its divisors is an integer number (24224256).

Almost surely, 2^242242420 is an apocalyptic number.

242242420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242242420 is an abundant number, since it is smaller than the sum of its proper divisors (339139724).

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

242242420 is a wasteful number, since it uses less digits than its factorization.

242242420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730319 (or 1730317 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 242242420 is about 15564.1389096859. The cubic root of 242242420 is about 623.3759821607.

Adding to 242242420 its reverse (24242242), we get a palindrome (266484662).

The spelling of 242242420 in words is "two hundred forty-two million, two hundred forty-two thousand, four hundred twenty".