212942284 has 6 divisors (see below), whose sum is σ = 372649004. Its totient is φ = 106471140.

The previous prime is 212942263. The next prime is 212942299. The reversal of 212942284 is 482249212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26617782 + ... + 26617789.

Almost surely, 2^212942284 is an apocalyptic number.

It is an amenable number.

212942284 is a deficient number, since it is larger than the sum of its proper divisors (159706720).

212942284 is a wasteful number, since it uses less digits than its factorization.

212942284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53235575 (or 53235573 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 212942284 is about 14592.5420677824. The cubic root of 212942284 is about 597.1553157487.

The spelling of 212942284 in words is "two hundred twelve million, nine hundred forty-two thousand, two hundred eighty-four".