346106405 has 4 divisors (see below), whose sum is σ = 415327692. Its totient is φ = 276885120.

The previous prime is 346106381. The next prime is 346106419. The reversal of 346106405 is 504601643.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87572164 + 258534241 = 9358^2 + 16079^2 .

It is not a de Polignac number, because 346106405 - 2¹⁴ = 346090021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34610636 + ... + 34610645.

It is an arithmetic number, because the mean of its divisors is an integer number (103831923).

Almost surely, 2^346106405 is an apocalyptic number.

It is an amenable number.

346106405 is a deficient number, since it is larger than the sum of its proper divisors (69221287).

346106405 is an equidigital number, since it uses as much as digits as its factorization.

346106405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69221286.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 346106405 is about 18603.9352019942. The cubic root of 346106405 is about 702.1068531325.

The spelling of 346106405 in words is "three hundred forty-six million, one hundred six thousand, four hundred five".