242243556 has 24 divisors (see below), whose sum is σ = 565559904. Its totient is φ = 80701440.

The previous prime is 242243531. The next prime is 242243563. The reversal of 242243556 is 655342242.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20836 + ... + 30308.

It is an arithmetic number, because the mean of its divisors is an integer number (23564996).

Almost surely, 2^242243556 is an apocalyptic number.

It is an amenable number.

242243556 is an abundant number, since it is smaller than the sum of its proper divisors (323316348).

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

242243556 is a wasteful number, since it uses less digits than its factorization.

242243556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11611 (or 11609 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 242243556 is about 15564.1754037919. The cubic root of 242243556 is about 623.3769566033.

Adding to 242243556 its reverse (655342242), we get a palindrome (897585798).

The spelling of 242243556 in words is "two hundred forty-two million, two hundred forty-three thousand, five hundred fifty-six".