305242788 has 24 divisors (see below), whose sum is σ = 712687360. Its totient is φ = 101682720.

The previous prime is 305242759. The next prime is 305242789. The reversal of 305242788 is 887242503.

It is not an unprimeable number, because it can be changed into a prime (305242789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13878 + ... + 28338.

Almost surely, 2^305242788 is an apocalyptic number.

It is an amenable number.

305242788 is an abundant number, since it is smaller than the sum of its proper divisors (407444572).

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

305242788 is a wasteful number, since it uses less digits than its factorization.

305242788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16227 (or 16225 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 305242788 is about 17471.1988140482. The cubic root of 305242788 is about 673.3101124779.

The spelling of 305242788 in words is "three hundred five million, two hundred forty-two thousand, seven hundred eighty-eight".