343620 has 72 divisors (see below), whose sum is σ = 1100736. Its totient is φ = 86592.

The previous prime is 343601. The next prime is 343627. The reversal of 343620 is 26343.

343620 is a `hidden beast` number, since 3 + 43 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 3³ + 4⁶ + 6⁷ + 3¹⁰ + 2⁹ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 343593 and 343602.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343620.

It is not an unprimeable number, because it can be changed into a prime (343627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4099 + ... + 4181.

It is an arithmetic number, because the mean of its divisors is an integer number (15288).

2³⁴³⁶²⁰ is an apocalyptic number.

343620 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 343620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550368).

343620 is an abundant number, since it is smaller than the sum of its proper divisors (757116).

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

343620 is a wasteful number, since it uses less digits than its factorization.

343620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 343620 is about 586.1910951217. The cubic root of 343620 is about 70.0421514835.

Adding to 343620 its reverse (26343), we get a palindrome (369963).

The spelling of 343620 in words is "three hundred forty-three thousand, six hundred twenty".