340032109 has 4 divisors (see below), whose sum is σ = 349222204. Its totient is φ = 330842016.

The previous prime is 340032107. The next prime is 340032127. The reversal of 340032109 is 901230043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 166978084 + 173054025 = 12922^2 + 13155^2 .

It is a cyclic number.

It is not a de Polignac number, because 340032109 - 2¹ = 340032107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340032109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340032107) 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, 4594992 + ... + 4595065.

It is an arithmetic number, because the mean of its divisors is an integer number (87305551).

Almost surely, 2^340032109 is an apocalyptic number.

It is an amenable number.

340032109 is a deficient number, since it is larger than the sum of its proper divisors (9190095).

340032109 is an equidigital number, since it uses as much as digits as its factorization.

340032109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9190094.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 340032109 is about 18439.9595715392. The cubic root of 340032109 is about 697.9751751556.

The spelling of 340032109 in words is "three hundred forty million, thirty-two thousand, one hundred nine".