340249170909 has 16 divisors (see below), whose sum is σ = 454058135552. Its totient is φ = 226636586928.

The previous prime is 340249170907. The next prime is 340249170913. The reversal of 340249170909 is 909071942043.

It is a happy number.

It is not a de Polignac number, because 340249170909 - 2¹ = 340249170907 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340249170907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18515844 + ... + 18534210.

It is an arithmetic number, because the mean of its divisors is an integer number (28378633472).

Almost surely, 2^340249170909 is an apocalyptic number.

It is an amenable number.

340249170909 is a deficient number, since it is larger than the sum of its proper divisors (113808964643).

340249170909 is a wasteful number, since it uses less digits than its factorization.

340249170909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23376.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 340249170909 in words is "three hundred forty billion, two hundred forty-nine million, one hundred seventy thousand, nine hundred nine".