28838212 has 48 divisors (see below), whose sum is σ = 56391552. Its totient is φ = 12821760.

The previous prime is 28838189. The next prime is 28838221. The reversal of 28838212 is 21283882.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269463 + ... + 269569.

It is an arithmetic number, because the mean of its divisors is an integer number (1174824).

Almost surely, 2^28838212 is an apocalyptic number.

It is an amenable number.

28838212 is a deficient number, since it is larger than the sum of its proper divisors (27553340).

28838212 is a wasteful number, since it uses less digits than its factorization.

28838212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 266 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 28838212 is about 5370.1221587595. The cubic root of 28838212 is about 306.6592788600.

The spelling of 28838212 in words is "twenty-eight million, eight hundred thirty-eight thousand, two hundred twelve".