288145946 has 16 divisors (see below), whose sum is σ = 471845088. Its totient is φ = 130882800.

The previous prime is 288145939. The next prime is 288145981. The reversal of 288145946 is 649541882.

It is a self number, because there is not a number n which added to its sum of digits gives 288145946.

It is an unprimeable number.

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, 34541 + ... + 42063.

It is an arithmetic number, because the mean of its divisors is an integer number (29490318).

Almost surely, 2^288145946 is an apocalyptic number.

288145946 is a deficient number, since it is larger than the sum of its proper divisors (183699142).

288145946 is a wasteful number, since it uses less digits than its factorization.

288145946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9277.

The product of its digits is 552960, while the sum is 47.

The square root of 288145946 is about 16974.8621791165. The cubic root of 288145946 is about 660.4969825786.

The spelling of 288145946 in words is "two hundred eighty-eight million, one hundred forty-five thousand, nine hundred forty-six".