346638 has 8 divisors (see below), whose sum is σ = 693288. Its totient is φ = 115544.

The previous prime is 346627. The next prime is 346639. The reversal of 346638 is 836643.

It is a sphenic number, since it is the product of 3 distinct primes.

346638 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 346638.

It is not an unprimeable number, because it can be changed into a prime (346639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28881 + ... + 28892.

It is an arithmetic number, because the mean of its divisors is an integer number (86661).

2³⁴⁶⁶³⁸ is an apocalyptic number.

346638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

346638 is a wasteful number, since it uses less digits than its factorization.

346638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57778.

The product of its digits is 10368, while the sum is 30.

The square root of 346638 is about 588.7597132957. The cubic root of 346638 is about 70.2466131437.

The spelling of 346638 in words is "three hundred forty-six thousand, six hundred thirty-eight".