28485212 has 12 divisors (see below), whose sum is σ = 56970480. Its totient is φ = 12207936.

The previous prime is 28485209. The next prime is 28485239. The reversal of 28485212 is 21258482.

28485212 is an admirable number.

It is a super-2 number, since 2×28485212² = 1622814605369888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 508637 + ... + 508692.

It is an arithmetic number, because the mean of its divisors is an integer number (4747540).

Almost surely, 2^28485212 is an apocalyptic number.

It is an amenable number.

28485212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28485212 is a wasteful number, since it uses less digits than its factorization.

28485212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017340 (or 1017338 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 28485212 is about 5337.1539232066. The cubic root of 28485212 is about 305.4028967357.

The spelling of 28485212 in words is "twenty-eight million, four hundred eighty-five thousand, two hundred twelve".