242320216 has 8 divisors (see below), whose sum is σ = 454350420. Its totient is φ = 121160104.

The previous prime is 242320171. The next prime is 242320217. The reversal of 242320216 is 612023242.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242320217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15145006 + ... + 15145021.

Almost surely, 2^242320216 is an apocalyptic number.

It is an amenable number.

242320216 is a deficient number, since it is larger than the sum of its proper divisors (212030204).

242320216 is a wasteful number, since it uses less digits than its factorization.

242320216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30290033 (or 30290029 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 242320216 is about 15566.6379157479. The cubic root of 242320216 is about 623.4427072858.

Adding to 242320216 its reverse (612023242), we get a palindrome (854343458).

The spelling of 242320216 in words is "two hundred forty-two million, three hundred twenty thousand, two hundred sixteen".