28302328 has 16 divisors (see below), whose sum is σ = 55374480. Its totient is φ = 13535808.

The previous prime is 28302311. The next prime is 28302367. The reversal of 28302328 is 82320382.

It is a junction number, because it is equal to n+sod(n) for n = 28302296 and 28302305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76725 + ... + 77092.

It is an arithmetic number, because the mean of its divisors is an integer number (3460905).

Almost surely, 2^28302328 is an apocalyptic number.

It is an amenable number.

28302328 is a deficient number, since it is larger than the sum of its proper divisors (27072152).

28302328 is a wasteful number, since it uses less digits than its factorization.

28302328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153846 (or 153842 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 28302328 is about 5319.9932330784. The cubic root of 28302328 is about 304.7478988200.

The spelling of 28302328 in words is "twenty-eight million, three hundred two thousand, three hundred twenty-eight".