28382828 has 12 divisors (see below), whose sum is σ = 51829680. Its totient is φ = 13574352.

The previous prime is 28382821. The next prime is 28382833. The reversal of 28382828 is 82828382.

It is not an unprimeable number, because it can be changed into a prime (28382821) 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, 154163 + ... + 154346.

It is an arithmetic number, because the mean of its divisors is an integer number (4319140).

Almost surely, 2^28382828 is an apocalyptic number.

It is an amenable number.

28382828 is a deficient number, since it is larger than the sum of its proper divisors (23446852).

28382828 is a wasteful number, since it uses less digits than its factorization.

28382828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308536 (or 308534 counting only the distinct ones).

The product of its digits is 98304, while the sum is 41.

The square root of 28382828 is about 5327.5536599832. The cubic root of 28382828 is about 305.0365556830.

The spelling of 28382828 in words is "twenty-eight million, three hundred eighty-two thousand, eight hundred twenty-eight".