340130320 has 20 divisors (see below), whose sum is σ = 790803180. Its totient is φ = 136052096.

The previous prime is 340130303. The next prime is 340130333. The reversal of 340130320 is 23031043.

It can be written as a sum of positive squares in 2 ways, for example, as 43877376 + 296252944 = 6624^2 + 17212^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 340130294 and 340130303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125735 + ... + 2125894.

It is an arithmetic number, because the mean of its divisors is an integer number (39540159).

Almost surely, 2^340130320 is an apocalyptic number.

It is an amenable number.

340130320 is an abundant number, since it is smaller than the sum of its proper divisors (450672860).

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

340130320 is a wasteful number, since it uses less digits than its factorization.

340130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251642 (or 4251636 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 340130320 is about 18442.6223731876. The cubic root of 340130320 is about 698.0423670860.

Adding to 340130320 its reverse (23031043), we get a palindrome (363161363).

The spelling of 340130320 in words is "three hundred forty million, one hundred thirty thousand, three hundred twenty".