346022381 has 2 divisors, whose sum is σ = 346022382. Its totient is φ = 346022380.

The previous prime is 346022363. The next prime is 346022387. The reversal of 346022381 is 183220643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345588100 + 434281 = 18590^2 + 659^2 .

It is a cyclic number.

It is not a de Polignac number, because 346022381 - 2²⁶ = 278913517 is a prime.

It is a super-2 number, since 2×346022381² = 239462976305818322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346022387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173011190 + 173011191.

It is an arithmetic number, because the mean of its divisors is an integer number (173011191).

Almost surely, 2^346022381 is an apocalyptic number.

It is an amenable number.

346022381 is a deficient number, since it is larger than the sum of its proper divisors (1).

346022381 is an equidigital number, since it uses as much as digits as its factorization.

346022381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 346022381 is about 18601.6768330170. The cubic root of 346022381 is about 702.0500318776.

The spelling of 346022381 in words is "three hundred forty-six million, twenty-two thousand, three hundred eighty-one".