305393216 has 28 divisors (see below), whose sum is σ = 618914688. Its totient is φ = 149446272.

The previous prime is 305393203. The next prime is 305393269. The reversal of 305393216 is 612393503.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 47756 + ... + 53771.

It is an arithmetic number, because the mean of its divisors is an integer number (22104096).

Almost surely, 2^305393216 is an apocalyptic number.

It is an amenable number.

305393216 is an abundant number, since it is smaller than the sum of its proper divisors (313521472).

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

305393216 is a wasteful number, since it uses less digits than its factorization.

305393216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101586 (or 101576 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 32.

The square root of 305393216 is about 17475.5033117790. The cubic root of 305393216 is about 673.4206999227.

It can be divided in two parts, 3053 and 93216, that added together give a palindrome (96269).

The spelling of 305393216 in words is "three hundred five million, three hundred ninety-three thousand, two hundred sixteen".