340303240 has 32 divisors (see below), whose sum is σ = 766580760. Its totient is φ = 135961600.

The previous prime is 340303217. The next prime is 340303241. The reversal of 340303240 is 42303043.

340303240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 339370084 + 933156 = 18422^2 + 966^2 .

It is not an unprimeable number, because it can be changed into a prime (340303241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33120 + ... + 42160.

Almost surely, 2^340303240 is an apocalyptic number.

It is an amenable number.

340303240 is an abundant number, since it is smaller than the sum of its proper divisors (426277520).

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

340303240 is a wasteful number, since it uses less digits than its factorization.

340303240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9993 (or 9989 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 340303240 is about 18447.3098309754. The cubic root of 340303240 is about 698.1606404158.

Adding to 340303240 its reverse (42303043), we get a palindrome (382606283).

The spelling of 340303240 in words is "three hundred forty million, three hundred three thousand, two hundred forty".