212283856 has 10 divisors (see below), whose sum is σ = 411300002. Its totient is φ = 106141920.

The previous prime is 212283853. The next prime is 212283893. The reversal of 212283856 is 658382212.

It can be written as a sum of positive squares in only one way, i.e., 158760000 + 53523856 = 12600^2 + 7316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212283853) by changing a digit.

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 as a sum of consecutive naturals, namely, 6633855 + ... + 6633886.

Almost surely, 2^212283856 is an apocalyptic number.

It is an amenable number.

212283856 is a deficient number, since it is larger than the sum of its proper divisors (199016146).

212283856 is a wasteful number, since it uses less digits than its factorization.

212283856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13267749 (or 13267743 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 212283856 is about 14569.9641729141. The cubic root of 212283856 is about 596.5392024397.

The spelling of 212283856 in words is "two hundred twelve million, two hundred eighty-three thousand, eight hundred fifty-six".