306801340 has 12 divisors (see below), whose sum is σ = 644282856. Its totient is φ = 122720528.

The previous prime is 306801323. The next prime is 306801349. The reversal of 306801340 is 43108603.

306801340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306801349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7670014 + ... + 7670053.

It is an arithmetic number, because the mean of its divisors is an integer number (53690238).

Almost surely, 2^306801340 is an apocalyptic number.

It is an amenable number.

306801340 is an abundant number, since it is smaller than the sum of its proper divisors (337481516).

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

306801340 is a wasteful number, since it uses less digits than its factorization.

306801340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15340076 (or 15340074 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 306801340 is about 17515.7454879888. The cubic root of 306801340 is about 674.4541284036.

Adding to 306801340 its reverse (43108603), we get a palindrome (349909943).

The spelling of 306801340 in words is "three hundred six million, eight hundred one thousand, three hundred forty".