212985424 has 10 divisors (see below), whose sum is σ = 412659290. Its totient is φ = 106492704.

The previous prime is 212985419. The next prime is 212985439. The reversal of 212985424 is 424589212.

212985424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 210830400 + 2155024 = 14520^2 + 1468^2 .

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 as a sum of consecutive naturals, namely, 6655779 + ... + 6655810.

It is an arithmetic number, because the mean of its divisors is an integer number (41265929).

Almost surely, 2^212985424 is an apocalyptic number.

It is an amenable number.

212985424 is a deficient number, since it is larger than the sum of its proper divisors (199673866).

212985424 is a wasteful number, since it uses less digits than its factorization.

212985424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13311597 (or 13311591 counting only the distinct ones).

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

The square root of 212985424 is about 14594.0201452513. The cubic root of 212985424 is about 597.1956389454.

The spelling of 212985424 in words is "two hundred twelve million, nine hundred eighty-five thousand, four hundred twenty-four".