240431313 has 8 divisors (see below), whose sum is σ = 326008800. Its totient is φ = 157570688.

The previous prime is 240431297. The next prime is 240431327. The reversal of 240431313 is 313134042.

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

It is a cyclic number.

It is not a de Polignac number, because 240431313 - 2⁴ = 240431297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240431313.

It is not an unprimeable number, because it can be changed into a prime (240431333) 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 7 ways as a sum of consecutive naturals, for example, 679008 + ... + 679361.

It is an arithmetic number, because the mean of its divisors is an integer number (40751100).

Almost surely, 2^240431313 is an apocalyptic number.

It is an amenable number.

240431313 is a deficient number, since it is larger than the sum of its proper divisors (85577487).

240431313 is a wasteful number, since it uses less digits than its factorization.

240431313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358431.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 240431313 is about 15505.8477033666. The cubic root of 240431313 is about 621.8185533406.

Adding to 240431313 its reverse (313134042), we get a palindrome (553565355).

The spelling of 240431313 in words is "two hundred forty million, four hundred thirty-one thousand, three hundred thirteen".