242221304 has 48 divisors (see below), whose sum is σ = 519628200. Its totient is φ = 105205248.

The previous prime is 242221271. The next prime is 242221313. The reversal of 242221304 is 403122242.

It is a super-2 number, since 2×242221304² = 117342320222920832, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26027 + ... + 34085.

Almost surely, 2^242221304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242221304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259814100).

242221304 is an abundant number, since it is smaller than the sum of its proper divisors (277406896).

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

242221304 is a wasteful number, since it uses less digits than its factorization.

242221304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8112 (or 8091 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 242221304 is about 15563.4605406381. The cubic root of 242221304 is about 623.3578686394.

Adding to 242221304 its reverse (403122242), we get a palindrome (645343546).

The spelling of 242221304 in words is "two hundred forty-two million, two hundred twenty-one thousand, three hundred four".