240452939 has 4 divisors (see below), whose sum is σ = 240527280. Its totient is φ = 240378600.

The previous prime is 240452929. The next prime is 240452941. The reversal of 240452939 is 939254042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939254042 = 2 ⋅469627021.

It is a cyclic number.

It is not a de Polignac number, because 240452939 - 2⁸ = 240452683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240452929) 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 3 ways as a sum of consecutive naturals, for example, 32087 + ... + 38864.

It is an arithmetic number, because the mean of its divisors is an integer number (60131820).

Almost surely, 2^240452939 is an apocalyptic number.

240452939 is a deficient number, since it is larger than the sum of its proper divisors (74341).

240452939 is an equidigital number, since it uses as much as digits as its factorization.

240452939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74340.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 240452939 is about 15506.5450374995. The cubic root of 240452939 is about 621.8371962879.

The spelling of 240452939 in words is "two hundred forty million, four hundred fifty-two thousand, nine hundred thirty-nine".