28546500 has 48 divisors (see below), whose sum is σ = 83131776. Its totient is φ = 7612000.

The previous prime is 28546487. The next prime is 28546517. The reversal of 28546500 is 564582.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8016 + ... + 11015.

It is an arithmetic number, because the mean of its divisors is an integer number (1731912).

Almost surely, 2^28546500 is an apocalyptic number.

28546500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28546500 is an abundant number, since it is smaller than the sum of its proper divisors (54585276).

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

28546500 is a wasteful number, since it uses less digits than its factorization.

28546500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19053 (or 19041 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 28546500 is about 5342.8924750551. The cubic root of 28546500 is about 305.6217719976.

The spelling of 28546500 in words is "twenty-eight million, five hundred forty-six thousand, five hundred".