346220443 has 2 divisors, whose sum is σ = 346220444. Its totient is φ = 346220442.

The previous prime is 346220429. The next prime is 346220447. The reversal of 346220443 is 344022643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 346220443 - 2⁹ = 346219931 is a prime.

It is a super-2 number, since 2×346220443² = 239737190302232498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (346220447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173110221 + 173110222.

It is an arithmetic number, because the mean of its divisors is an integer number (173110222).

Almost surely, 2^346220443 is an apocalyptic number.

346220443 is a deficient number, since it is larger than the sum of its proper divisors (1).

346220443 is an equidigital number, since it uses as much as digits as its factorization.

346220443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 346220443 is about 18606.9998387704. Note that the first 3 decimals coincide. The cubic root of 346220443 is about 702.1839566553.

The spelling of 346220443 in words is "three hundred forty-six million, two hundred twenty thousand, four hundred forty-three".