340303340 has 48 divisors (see below), whose sum is σ = 777288960. Its totient is φ = 124396800.

The previous prime is 340303339. The next prime is 340303343. The reversal of 340303340 is 43303043.

It is a happy number.

340303340 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 not an unprimeable number, because it can be changed into a prime (340303343) 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, 19781 + ... + 32739.

It is an arithmetic number, because the mean of its divisors is an integer number (16193520).

Almost surely, 2^340303340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340303340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388644480).

340303340 is an abundant number, since it is smaller than the sum of its proper divisors (436985620).

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

340303340 is a wasteful number, since it uses less digits than its factorization.

340303340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13082 (or 13080 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

The square root of 340303340 is about 18447.3125413975. The cubic root of 340303340 is about 698.1607088020.

Adding to 340303340 its reverse (43303043), we get a palindrome (383606383).

The spelling of 340303340 in words is "three hundred forty million, three hundred three thousand, three hundred forty".