240730216 has 8 divisors (see below), whose sum is σ = 451369170. Its totient is φ = 120365104.

The previous prime is 240730201. The next prime is 240730223. The reversal of 240730216 is 612037042.

It can be written as a sum of positive squares in only one way, i.e., 169260100 + 71470116 = 13010^2 + 8454^2 .

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

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 as a sum of consecutive naturals, namely, 15045631 + ... + 15045646.

Almost surely, 2^240730216 is an apocalyptic number.

It is an amenable number.

240730216 is a deficient number, since it is larger than the sum of its proper divisors (210638954).

240730216 is a wasteful number, since it uses less digits than its factorization.

240730216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30091283 (or 30091279 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 240730216 is about 15515.4831055949. The cubic root of 240730216 is about 622.0761271987.

Adding to 240730216 its reverse (612037042), we get a palindrome (852767258).

It can be divided in two parts, 2407 and 30216, that added together give a palindrome (32623).

The spelling of 240730216 in words is "two hundred forty million, seven hundred thirty thousand, two hundred sixteen".