240216839 has 8 divisors (see below), whose sum is σ = 247629888. Its totient is φ = 232852320.

The previous prime is 240216811. The next prime is 240216863. The reversal of 240216839 is 938612042.

240216839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240216839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240216799 and 240216808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240216139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1952 + ... + 22005.

It is an arithmetic number, because the mean of its divisors is an integer number (30953736).

Almost surely, 2^240216839 is an apocalyptic number.

240216839 is a deficient number, since it is larger than the sum of its proper divisors (7413049).

240216839 is a wasteful number, since it uses less digits than its factorization.

240216839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24265.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 240216839 is about 15498.9302534078. The cubic root of 240216839 is about 621.6336029617.

The spelling of 240216839 in words is "two hundred forty million, two hundred sixteen thousand, eight hundred thirty-nine".