343400 has 48 divisors (see below), whose sum is σ = 853740. Its totient is φ = 128000.

The previous prime is 343393. The next prime is 343411. The reversal of 343400 is 4343.

It can be written as a sum of positive squares in 6 ways, for example, as 268324 + 75076 = 518^2 + 274^2 .

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

343400 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 11 ways as a sum of consecutive naturals, for example, 3350 + ... + 3450.

2³⁴³⁴⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426870).

343400 is an abundant number, since it is smaller than the sum of its proper divisors (510340).

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

343400 is a wasteful number, since it uses less digits than its factorization.

343400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 343400 is about 586.0034129593. The cubic root of 343400 is about 70.0272003136.

Adding to 343400 its reverse (4343), we get a palindrome (347743).

It can be divided in two parts, 34 and 3400, that multiplied together give a square (115600 = 340²).

The spelling of 343400 in words is "three hundred forty-three thousand, four hundred", and thus it is an iban number.