240216424 has 24 divisors (see below), whose sum is σ = 523942290. Its totient is φ = 102949728.

The previous prime is 240216421. The next prime is 240216433. The reversal of 240216424 is 424612042.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 235008900 + 5207524 = 15330^2 + 2282^2 .

It is not an unprimeable number, because it can be changed into a prime (240216421) 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 in 5 ways as a sum of consecutive naturals, for example, 306007 + ... + 306790.

Almost surely, 2^240216424 is an apocalyptic number.

It is an amenable number.

240216424 is an abundant number, since it is smaller than the sum of its proper divisors (283725866).

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

240216424 is a wasteful number, since it uses less digits than its factorization.

240216424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612817 (or 612806 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 240216424 is about 15498.9168653813. The cubic root of 240216424 is about 621.6332449822.

Adding to 240216424 its reverse (424612042), we get a palindrome (664828466).

The spelling of 240216424 in words is "two hundred forty million, two hundred sixteen thousand, four hundred twenty-four".