344362261 has 2 divisors, whose sum is σ = 344362262. Its totient is φ = 344362260.

The previous prime is 344362247. The next prime is 344362307. The reversal of 344362261 is 162263443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231344100 + 113018161 = 15210^2 + 10631^2 .

It is a cyclic number.

It is not a de Polignac number, because 344362261 - 2⁷ = 344362133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (344362231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172181130 + 172181131.

It is an arithmetic number, because the mean of its divisors is an integer number (172181131).

Almost surely, 2^344362261 is an apocalyptic number.

It is an amenable number.

344362261 is a deficient number, since it is larger than the sum of its proper divisors (1).

344362261 is an equidigital number, since it uses as much as digits as its factorization.

344362261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 31.

The square root of 344362261 is about 18557.0003233281. Note that the first 3 decimals coincide. The cubic root of 344362261 is about 700.9254840230.

The spelling of 344362261 in words is "three hundred forty-four million, three hundred sixty-two thousand, two hundred sixty-one".