28740750 has 32 divisors (see below), whose sum is σ = 71738784. Its totient is φ = 7664000.

The previous prime is 28740743. The next prime is 28740773. The reversal of 28740750 is 5704782.

It is a congruent number.

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, 18411 + ... + 19910.

It is an arithmetic number, because the mean of its divisors is an integer number (2241837).

Almost surely, 2^28740750 is an apocalyptic number.

28740750 is an abundant number, since it is smaller than the sum of its proper divisors (42998034).

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

28740750 is a wasteful number, since it uses less digits than its factorization.

28740750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38341 (or 38331 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 28740750 is about 5361.0400110426. The cubic root of 28740750 is about 306.3134257083.

The spelling of 28740750 in words is "twenty-eight million, seven hundred forty thousand, seven hundred fifty".