288028 has 24 divisors (see below), whose sum is σ = 564480. Its totient is φ = 127680.

The previous prime is 288023. The next prime is 288049. The reversal of 288028 is 820882.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 287987 and 288005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (23520).

2²⁸⁸⁰²⁸ is an apocalyptic number.

It is an amenable number.

288028 is a deficient number, since it is larger than the sum of its proper divisors (276452).

288028 is a wasteful number, since it uses less digits than its factorization.

288028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 288028 is about 536.6824014256. The cubic root of 288028 is about 66.0406850466.

The spelling of 288028 in words is "two hundred eighty-eight thousand, twenty-eight".