28082574 has 24 divisors (see below), whose sum is σ = 65526552. Its totient is φ = 8640720.

The previous prime is 28082573. The next prime is 28082591. The reversal of 28082574 is 47528082.

It is a happy number.

28082574 is a `hidden beast` number, since 2 + 8 + 0 + 82 + 574 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28082573) 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 11 ways as a sum of consecutive naturals, for example, 59772 + ... + 60239.

It is an arithmetic number, because the mean of its divisors is an integer number (2730273).

Almost surely, 2^28082574 is an apocalyptic number.

28082574 is an abundant number, since it is smaller than the sum of its proper divisors (37443978).

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

28082574 is a wasteful number, since it uses less digits than its factorization.

28082574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120032 (or 120029 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28082574 is about 5299.2993876549. The cubic root of 28082574 is about 303.9571081568.

The spelling of 28082574 in words is "twenty-eight million, eighty-two thousand, five hundred seventy-four".