304205340 has 24 divisors (see below), whose sum is σ = 851775120. Its totient is φ = 81121408.

The previous prime is 304205329. The next prime is 304205399. The reversal of 304205340 is 43502403.

It is a happy number.

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, 2534985 + ... + 2535104.

It is an arithmetic number, because the mean of its divisors is an integer number (35490630).

Almost surely, 2^304205340 is an apocalyptic number.

304205340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

304205340 is an abundant number, since it is smaller than the sum of its proper divisors (547569780).

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

304205340 is a wasteful number, since it uses less digits than its factorization.

304205340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070101 (or 5070099 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 304205340 is about 17441.4833084804. The cubic root of 304205340 is about 672.5464393980.

Adding to 304205340 its reverse (43502403), we get a palindrome (347707743).

The spelling of 304205340 in words is "three hundred four million, two hundred five thousand, three hundred forty".