305343372 has 12 divisors (see below), whose sum is σ = 712467896. Its totient is φ = 101781120.

The previous prime is 305343361. The next prime is 305343383. The reversal of 305343372 is 273343503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (305343361) and next prime (305343383).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12722629 + ... + 12722652.

Almost surely, 2^305343372 is an apocalyptic number.

It is an amenable number.

305343372 is an abundant number, since it is smaller than the sum of its proper divisors (407124524).

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

305343372 is a wasteful number, since it uses less digits than its factorization.

305343372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25445288 (or 25445286 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 30.

The square root of 305343372 is about 17474.0771430139. The cubic root of 305343372 is about 673.3840610302.

Adding to 305343372 its reverse (273343503), we get a palindrome (578686875).

The spelling of 305343372 in words is "three hundred five million, three hundred forty-three thousand, three hundred seventy-two".