28457682 has 32 divisors (see below), whose sum is σ = 62282304. Its totient is φ = 8596800.

The previous prime is 28457669. The next prime is 28457683. The reversal of 28457682 is 28675482.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28457683) by changing a digit.

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, 35308 + ... + 36104.

It is an arithmetic number, because the mean of its divisors is an integer number (1946322).

Almost surely, 2^28457682 is an apocalyptic number.

28457682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28457682 is an abundant number, since it is smaller than the sum of its proper divisors (33824622).

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

28457682 is a wasteful number, since it uses less digits than its factorization.

28457682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its digits is 215040, while the sum is 42.

The square root of 28457682 is about 5334.5742098128. The cubic root of 28457682 is about 305.3044778110.

The spelling of 28457682 in words is "twenty-eight million, four hundred fifty-seven thousand, six hundred eighty-two".