28750574 has 16 divisors (see below), whose sum is σ = 44378928. Its totient is φ = 13961472.

The previous prime is 28750573. The next prime is 28750597. The reversal of 28750574 is 47505782.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28750573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16094 + ... + 17790.

It is an arithmetic number, because the mean of its divisors is an integer number (2773683).

Almost surely, 2^28750574 is an apocalyptic number.

28750574 is a deficient number, since it is larger than the sum of its proper divisors (15628354).

28750574 is a wasteful number, since it uses less digits than its factorization.

28750574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 28750574 is about 5361.9561728906. The cubic root of 28750574 is about 306.3483225046.

The spelling of 28750574 in words is "twenty-eight million, seven hundred fifty thousand, five hundred seventy-four".