344312209 has 4 divisors (see below), whose sum is σ = 344533504. Its totient is φ = 344090916.

The previous prime is 344312201. The next prime is 344312251. The reversal of 344312209 is 902213443.

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 344312209 - 2³ = 344312201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344312201) 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, 108297 + ... + 111430.

It is an arithmetic number, because the mean of its divisors is an integer number (86133376).

Almost surely, 2^344312209 is an apocalyptic number.

It is an amenable number.

344312209 is a deficient number, since it is larger than the sum of its proper divisors (221295).

344312209 is a wasteful number, since it uses less digits than its factorization.

344312209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221294.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 344312209 is about 18555.6516727384. The cubic root of 344312209 is about 700.8915232535.

The spelling of 344312209 in words is "three hundred forty-four million, three hundred twelve thousand, two hundred nine".