242222320 has 40 divisors (see below), whose sum is σ = 568450224. Its totient is φ = 95980032.

The previous prime is 242222293. The next prime is 242222329. The reversal of 242222320 is 23222242.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242222329) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5589 + ... + 22708.

Almost surely, 2^242222320 is an apocalyptic number.

242222320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242222320 is an abundant number, since it is smaller than the sum of its proper divisors (326227904).

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

242222320 is a wasteful number, since it uses less digits than its factorization.

242222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28417 (or 28411 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 242222320 is about 15563.4931811596. The cubic root of 242222320 is about 623.3587401987.

Adding to 242222320 its reverse (23222242), we get a palindrome (265444562).

It can be divided in two parts, 2422 and 22320, that added together give a palindrome (24742).

The spelling of 242222320 in words is "two hundred forty-two million, two hundred twenty-two thousand, three hundred twenty".