288118228 has 6 divisors (see below), whose sum is σ = 504206906. Its totient is φ = 144059112.

The previous prime is 288118211. The next prime is 288118231. The reversal of 288118228 is 822811882.

It can be written as a sum of positive squares in only one way, i.e., 225360144 + 62758084 = 15012^2 + 7922^2 .

It is a super-2 number, since 2×288118228² = 166024226611719968, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 36014775 + ... + 36014782.

Almost surely, 2^288118228 is an apocalyptic number.

It is an amenable number.

288118228 is a deficient number, since it is larger than the sum of its proper divisors (216088678).

288118228 is a wasteful number, since it uses less digits than its factorization.

288118228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72029561 (or 72029559 counting only the distinct ones).

The product of its digits is 32768, while the sum is 40.

The square root of 288118228 is about 16974.0457169173. The cubic root of 288118228 is about 660.4758032160.

The spelling of 288118228 in words is "two hundred eighty-eight million, one hundred eighteen thousand, two hundred twenty-eight".