346040069 has 2 divisors, whose sum is σ = 346040070. Its totient is φ = 346040068.

The previous prime is 346040063. The next prime is 346040077. The reversal of 346040069 is 960040643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326344225 + 19695844 = 18065^2 + 4438^2 .

It is a cyclic number.

It is not a de Polignac number, because 346040069 - 2¹² = 346035973 is a prime.

It is a super-2 number, since 2×346040069² = 239487458707049522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346040063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173020034 + 173020035.

It is an arithmetic number, because the mean of its divisors is an integer number (173020035).

Almost surely, 2^346040069 is an apocalyptic number.

It is an amenable number.

346040069 is a deficient number, since it is larger than the sum of its proper divisors (1).

346040069 is an equidigital number, since it uses as much as digits as its factorization.

346040069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 346040069 is about 18602.1522679501. The cubic root of 346040069 is about 702.0619941571.

The spelling of 346040069 in words is "three hundred forty-six million, forty thousand, sixty-nine".