288305930 has 32 divisors (see below), whose sum is σ = 567096768. Its totient is φ = 104659200.

The previous prime is 288305917. The next prime is 288305957. The reversal of 288305930 is 39503882.

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 15 ways as a sum of consecutive naturals, for example, 74114 + ... + 77906.

It is an arithmetic number, because the mean of its divisors is an integer number (17721774).

Almost surely, 2^288305930 is an apocalyptic number.

288305930 is a deficient number, since it is larger than the sum of its proper divisors (278790838).

288305930 is a wasteful number, since it uses less digits than its factorization.

288305930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 288305930 is about 16979.5739051367. The cubic root of 288305930 is about 660.6192000409.

The spelling of 288305930 in words is "two hundred eighty-eight million, three hundred five thousand, nine hundred thirty".