28545080 has 16 divisors (see below), whose sum is σ = 64226520. Its totient is φ = 11418016.

The previous prime is 28545073. The next prime is 28545089. The reversal of 28545080 is 8054582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28545089) 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, 356774 + ... + 356853.

Almost surely, 2^28545080 is an apocalyptic number.

28545080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28545080 is an abundant number, since it is smaller than the sum of its proper divisors (35681440).

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

28545080 is a wasteful number, since it uses less digits than its factorization.

28545080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713638 (or 713634 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 28545080 is about 5342.7595865807. The cubic root of 28545080 is about 305.6167043581.

The spelling of 28545080 in words is "twenty-eight million, five hundred forty-five thousand, eighty".