346446449 has 2 divisors, whose sum is σ = 346446450. Its totient is φ = 346446448.

The previous prime is 346446439. The next prime is 346446509. The reversal of 346446449 is 944644643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225600400 + 120846049 = 15020^2 + 10993^2 .

It is an emirp because it is prime and its reverse (944644643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 346446449 - 2⁸ = 346446193 is a prime.

It is not a weakly prime, because it can be changed into another prime (346446439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173223224 + 173223225.

It is an arithmetic number, because the mean of its divisors is an integer number (173223225).

Almost surely, 2^346446449 is an apocalyptic number.

It is an amenable number.

346446449 is a deficient number, since it is larger than the sum of its proper divisors (1).

346446449 is an equidigital number, since it uses as much as digits as its factorization.

346446449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 44.

The square root of 346446449 is about 18613.0719925541. The cubic root of 346446449 is about 702.3367141170.

The spelling of 346446449 in words is "three hundred forty-six million, four hundred forty-six thousand, four hundred forty-nine".