305272668 has 12 divisors (see below), whose sum is σ = 712302920. Its totient is φ = 101757552.

The previous prime is 305272663. The next prime is 305272673. The reversal of 305272668 is 866272503.

It is an interprime number because it is at equal distance from previous prime (305272663) and next prime (305272673).

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

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305272663) by changing a digit.

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, 12719683 + ... + 12719706.

Almost surely, 2^305272668 is an apocalyptic number.

It is an amenable number.

305272668 is an abundant number, since it is smaller than the sum of its proper divisors (407030252).

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

305272668 is a wasteful number, since it uses less digits than its factorization.

305272668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25439396 (or 25439394 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 305272668 is about 17472.0539147520. The cubic root of 305272668 is about 673.3320817108.

The spelling of 305272668 in words is "three hundred five million, two hundred seventy-two thousand, six hundred sixty-eight".