305430340 has 24 divisors (see below), whose sum is σ = 669291840. Its totient is φ = 116860128.

The previous prime is 305430311. The next prime is 305430341. The reversal of 305430340 is 43034503.

It is not an unprimeable number, because it can be changed into a prime (305430341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331530 + ... + 332449.

It is an arithmetic number, because the mean of its divisors is an integer number (27887160).

Almost surely, 2^305430340 is an apocalyptic number.

It is an amenable number.

305430340 is an abundant number, since it is smaller than the sum of its proper divisors (363861500).

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

305430340 is a wasteful number, since it uses less digits than its factorization.

305430340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664011 (or 664009 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 305430340 is about 17476.5654520561. The cubic root of 305430340 is about 673.4479861184.

Adding to 305430340 its reverse (43034503), we get a palindrome (348464843).

The spelling of 305430340 in words is "three hundred five million, four hundred thirty thousand, three hundred forty".