28084288 has 28 divisors (see below), whose sum is σ = 58155840. Its totient is φ = 13430912.

The previous prime is 28084283. The next prime is 28084307. The reversal of 28084288 is 88248082.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28084288.

It is not an unprimeable number, because it can be changed into a prime (28084283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8068 + ... + 11011.

Almost surely, 2^28084288 is an apocalyptic number.

It is an amenable number.

28084288 is an abundant number, since it is smaller than the sum of its proper divisors (30071552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28084288 is a wasteful number, since it uses less digits than its factorization.

28084288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19114 (or 19104 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 28084288 is about 5299.4611046785. The cubic root of 28084288 is about 303.9632919666.

The spelling of 28084288 in words is "twenty-eight million, eighty-four thousand, two hundred eighty-eight".