242022644 has 6 divisors (see below), whose sum is σ = 423539634. Its totient is φ = 121011320.

The previous prime is 242022623. The next prime is 242022647. The reversal of 242022644 is 446220242.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 188732644 + 53290000 = 13738^2 + 7300^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242022647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30252827 + ... + 30252834.

It is an arithmetic number, because the mean of its divisors is an integer number (70589939).

Almost surely, 2^242022644 is an apocalyptic number.

It is an amenable number.

242022644 is a deficient number, since it is larger than the sum of its proper divisors (181516990).

242022644 is a wasteful number, since it uses less digits than its factorization.

242022644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60505665 (or 60505663 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 242022644 is about 15557.0769748047. The cubic root of 242022644 is about 623.1874044912.

Adding to 242022644 its reverse (446220242), we get a palindrome (688242886).

The spelling of 242022644 in words is "two hundred forty-two million, twenty-two thousand, six hundred forty-four".