340620 has 48 divisors (see below), whose sum is σ = 1091328. Its totient is φ = 77760.

The previous prime is 340619. The next prime is 340633. The reversal of 340620 is 26043.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 340620.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15 + ... + 825.

It is an arithmetic number, because the mean of its divisors is an integer number (22736).

2³⁴⁰⁶²⁰ is an apocalyptic number.

340620 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 340620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545664).

340620 is an abundant number, since it is smaller than the sum of its proper divisors (750708).

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

340620 is a wasteful number, since it uses less digits than its factorization.

340620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 340620 is about 583.6265929513. The cubic root of 340620 is about 69.8377193142.

Adding to 340620 its reverse (26043), we get a palindrome (366663).

The spelling of 340620 in words is "three hundred forty thousand, six hundred twenty".