340113309 has 4 divisors (see below), whose sum is σ = 453484416. Its totient is φ = 226742204.

The previous prime is 340113289. The next prime is 340113317. The reversal of 340113309 is 903311043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 340113309 - 2²⁷ = 205895581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340112309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56685549 + ... + 56685554.

It is an arithmetic number, because the mean of its divisors is an integer number (113371104).

Almost surely, 2^340113309 is an apocalyptic number.

It is an amenable number.

340113309 is a deficient number, since it is larger than the sum of its proper divisors (113371107).

340113309 is a wasteful number, since it uses less digits than its factorization.

340113309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113371106.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 340113309 is about 18442.1611802955. The cubic root of 340113309 is about 698.0307297850.

The spelling of 340113309 in words is "three hundred forty million, one hundred thirteen thousand, three hundred nine".