212284828 has 12 divisors (see below), whose sum is σ = 424569712. Its totient is φ = 90979200.

The previous prime is 212284783. The next prime is 212284829. The reversal of 212284828 is 828482212.

212284828 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212284829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3790773 + ... + 3790828.

Almost surely, 2^212284828 is an apocalyptic number.

212284828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

212284828 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.

212284828 is a wasteful number, since it uses less digits than its factorization.

212284828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581612 (or 7581610 counting only the distinct ones).

The product of its digits is 32768, while the sum is 37.

The square root of 212284828 is about 14569.9975291693. The cubic root of 212284828 is about 596.5401129112.

The spelling of 212284828 in words is "two hundred twelve million, two hundred eighty-four thousand, eight hundred twenty-eight".