346660 has 12 divisors (see below), whose sum is σ = 728028. Its totient is φ = 138656.

The previous prime is 346657. The next prime is 346667. The reversal of 346660 is 66643.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61504 + 285156 = 248^2 + 534^2 .

It is not an unprimeable number, because it can be changed into a prime (346667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8647 + ... + 8686.

It is an arithmetic number, because the mean of its divisors is an integer number (60669).

2³⁴⁶⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

346660 is an abundant number, since it is smaller than the sum of its proper divisors (381368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

346660 is a wasteful number, since it uses less digits than its factorization.

346660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17342 (or 17340 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 346660 is about 588.7783963428. The cubic root of 346660 is about 70.2480992212.

The spelling of 346660 in words is "three hundred forty-six thousand, six hundred sixty".