28005246 has 12 divisors (see below), whose sum is σ = 60678072. Its totient is φ = 9335076.

The previous prime is 28005227. The next prime is 28005247. The reversal of 28005246 is 64250082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28005247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 777906 + ... + 777941.

It is an arithmetic number, because the mean of its divisors is an integer number (5056506).

Almost surely, 2^28005246 is an apocalyptic number.

28005246 is an abundant number, since it is smaller than the sum of its proper divisors (32672826).

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

28005246 is a wasteful number, since it uses less digits than its factorization.

28005246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555855 (or 1555852 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 28005246 is about 5291.9982993195. The cubic root of 28005246 is about 303.6778602245.

The spelling of 28005246 in words is "twenty-eight million, five thousand, two hundred forty-six".