240399159 has 96 divisors (see below), whose sum is σ = 458820096. Its totient is φ = 108103680.

The previous prime is 240399143. The next prime is 240399167. The reversal of 240399159 is 951993042.

It is not a de Polignac number, because 240399159 - 2⁴ = 240399143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240399159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240399119) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 867729 + ... + 868005.

It is an arithmetic number, because the mean of its divisors is an integer number (4779376).

Almost surely, 2^240399159 is an apocalyptic number.

240399159 is a deficient number, since it is larger than the sum of its proper divisors (218420937).

240399159 is a wasteful number, since it uses less digits than its factorization.

240399159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 328 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 240399159 is about 15504.8108340605. The cubic root of 240399159 is about 621.7908325404.

The spelling of 240399159 in words is "two hundred forty million, three hundred ninety-nine thousand, one hundred fifty-nine".