340289868 has 12 divisors (see below), whose sum is σ = 794009720. Its totient is φ = 113429952.

The previous prime is 340289861. The next prime is 340289869. The reversal of 340289868 is 868982043.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (340289861) 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 3 ways as a sum of consecutive naturals, for example, 14178733 + ... + 14178756.

Almost surely, 2^340289868 is an apocalyptic number.

It is an amenable number.

340289868 is an abundant number, since it is smaller than the sum of its proper divisors (453719852).

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

340289868 is a wasteful number, since it uses less digits than its factorization.

340289868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28357496 (or 28357494 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 340289868 is about 18446.9473897445. The cubic root of 340289868 is about 698.1514957029.

The spelling of 340289868 in words is "three hundred forty million, two hundred eighty-nine thousand, eight hundred sixty-eight".