346404643 has 16 divisors (see below), whose sum is σ = 379844640. Its totient is φ = 313986816.

The previous prime is 346404607. The next prime is 346404677.

346404643 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 346404643 - 2¹³ = 346396451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 346404599 and 346404608.

It is not an unprimeable number, because it can be changed into a prime (346404683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180696 + ... + 182602.

It is an arithmetic number, because the mean of its divisors is an integer number (23740290).

Almost surely, 2^346404643 is an apocalyptic number.

346404643 is a deficient number, since it is larger than the sum of its proper divisors (33439997).

346404643 is a wasteful number, since it uses less digits than its factorization.

346404643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166.

The product of its (nonzero) digits is 82944, while the sum is 34.

The square root of 346404643 is about 18611.9489307273. The cubic root of 346404643 is about 702.3084624494.

The spelling of 346404643 in words is "three hundred forty-six million, four hundred four thousand, six hundred forty-three".