343390 has 16 divisors (see below), whose sum is σ = 645408. Its totient is φ = 131296.

The previous prime is 343381. The next prime is 343391. The reversal of 343390 is 93343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343391) by changing a digit.

343390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517 + ... + 976.

It is an arithmetic number, because the mean of its divisors is an integer number (40338).

2³⁴³³⁹⁰ is an apocalyptic number.

343390 is a deficient number, since it is larger than the sum of its proper divisors (302018).

343390 is a wasteful number, since it uses less digits than its factorization.

343390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 343390 is about 585.9948805237. The cubic root of 343390 is about 70.0265205633.

Subtracting from 343390 its reverse (93343), we obtain a cube (250047 = 63³).

The spelling of 343390 in words is "three hundred forty-three thousand, three hundred ninety".