347340 has 48 divisors (see below), whose sum is σ = 1112832. Its totient is φ = 79296.

The previous prime is 347329. The next prime is 347341. The reversal of 347340 is 43743.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347341) 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, 7 + ... + 833.

It is an arithmetic number, because the mean of its divisors is an integer number (23184).

2³⁴⁷³⁴⁰ is an apocalyptic number.

347340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 347340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556416).

347340 is an abundant number, since it is smaller than the sum of its proper divisors (765492).

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

347340 is a wasteful number, since it uses less digits than its factorization.

347340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 347340 is about 589.3555802739. The cubic root of 347340 is about 70.2940015534.

Adding to 347340 its sum of digits (21), we get a triangular number (347361 = T₈₃₃).

The spelling of 347340 in words is "three hundred forty-seven thousand, three hundred forty", and thus it is an iban number.