28570750 has 64 divisors (see below), whose sum is σ = 58968000. Its totient is φ = 10300800.

The previous prime is 28570741. The next prime is 28570769. The reversal of 28570750 is 5707582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191676 + ... + 191824.

It is an arithmetic number, because the mean of its divisors is an integer number (921375).

Almost surely, 2^28570750 is an apocalyptic number.

28570750 is an abundant number, since it is smaller than the sum of its proper divisors (30397250).

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

28570750 is a wasteful number, since it uses less digits than its factorization.

28570750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 28570750 is about 5345.1613633266. The cubic root of 28570750 is about 305.7082885039.

The spelling of 28570750 in words is "twenty-eight million, five hundred seventy thousand, seven hundred fifty".