28450328 has 16 divisors (see below), whose sum is σ = 53401680. Its totient is φ = 14209888.

The previous prime is 28450327. The next prime is 28450399. The reversal of 28450328 is 82305482.

It is a junction number, because it is equal to n+sod(n) for n = 28450294 and 28450303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28450327) by changing a digit.

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, 11750 + ... + 13962.

It is an arithmetic number, because the mean of its divisors is an integer number (3337605).

Almost surely, 2^28450328 is an apocalyptic number.

It is an amenable number.

28450328 is a deficient number, since it is larger than the sum of its proper divisors (24951352).

28450328 is a wasteful number, since it uses less digits than its factorization.

28450328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826 (or 3822 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 28450328 is about 5333.8848881467. The cubic root of 28450328 is about 305.2781767398.

The spelling of 28450328 in words is "twenty-eight million, four hundred fifty thousand, three hundred twenty-eight".