340305500 has 24 divisors (see below), whose sum is σ = 743228304. Its totient is φ = 136122000.

The previous prime is 340305491. The next prime is 340305557. The reversal of 340305500 is 5503043.

340305500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339806 + ... + 340805.

It is an arithmetic number, because the mean of its divisors is an integer number (30967846).

Almost surely, 2^340305500 is an apocalyptic number.

It is an amenable number.

340305500 is an abundant number, since it is smaller than the sum of its proper divisors (402922804).

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

340305500 is a wasteful number, since it uses less digits than its factorization.

340305500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680630 (or 680618 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 340305500 is about 18447.3710864177. The cubic root of 340305500 is about 698.1621859389.

Adding to 340305500 its reverse (5503043), we get a palindrome (345808543).

The spelling of 340305500 in words is "three hundred forty million, three hundred five thousand, five hundred".