288478228 has 12 divisors (see below), whose sum is σ = 516577600. Its totient is φ = 140884632.

The previous prime is 288478207. The next prime is 288478279. The reversal of 288478228 is 822874882.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 838428 + ... + 838771.

Almost surely, 2^288478228 is an apocalyptic number.

It is an amenable number.

288478228 is a deficient number, since it is larger than the sum of its proper divisors (228099372).

288478228 is a wasteful number, since it uses less digits than its factorization.

288478228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677246 (or 1677244 counting only the distinct ones).

The product of its digits is 917504, while the sum is 49.

The square root of 288478228 is about 16984.6468317713. The cubic root of 288478228 is about 660.7507740486.

The spelling of 288478228 in words is "two hundred eighty-eight million, four hundred seventy-eight thousand, two hundred twenty-eight".