344268521 has 2 divisors, whose sum is σ = 344268522. Its totient is φ = 344268520.

The previous prime is 344268517. The next prime is 344268527. The reversal of 344268521 is 125862443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325441600 + 18826921 = 18040^2 + 4339^2 .

It is a cyclic number.

It is not a de Polignac number, because 344268521 - 2² = 344268517 is a prime.

It is not a weakly prime, because it can be changed into another prime (344268527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172134260 + 172134261.

It is an arithmetic number, because the mean of its divisors is an integer number (172134261).

Almost surely, 2^344268521 is an apocalyptic number.

It is an amenable number.

344268521 is a deficient number, since it is larger than the sum of its proper divisors (1).

344268521 is an equidigital number, since it uses as much as digits as its factorization.

344268521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 35.

The square root of 344268521 is about 18554.4744199344. The cubic root of 344268521 is about 700.8618778297.

The spelling of 344268521 in words is "three hundred forty-four million, two hundred sixty-eight thousand, five hundred twenty-one".