28499212 has 24 divisors (see below), whose sum is σ = 57689856. Its totient is φ = 12065808.

The previous prime is 28499209. The next prime is 28499227. The reversal of 28499212 is 21299482.

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 7 ways as a sum of consecutive naturals, for example, 3808 + ... + 8455.

It is an arithmetic number, because the mean of its divisors is an integer number (2403744).

Almost surely, 2^28499212 is an apocalyptic number.

It is an amenable number.

28499212 is an abundant number, since it is smaller than the sum of its proper divisors (29190644).

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

28499212 is a wasteful number, since it uses less digits than its factorization.

28499212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12357 (or 12355 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 28499212 is about 5338.4653225435. The cubic root of 28499212 is about 305.4529219941.

The spelling of 28499212 in words is "twenty-eight million, four hundred ninety-nine thousand, two hundred twelve".