212284790 has 16 divisors (see below), whose sum is σ = 385685712. Its totient is φ = 84119904.

The previous prime is 212284783. The next prime is 212284829. The reversal of 212284790 is 97482212.

It is a self number, because there is not a number n which added to its sum of digits gives 212284790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98129 + ... + 100268.

It is an arithmetic number, because the mean of its divisors is an integer number (24105357).

Almost surely, 2^212284790 is an apocalyptic number.

212284790 is a deficient number, since it is larger than the sum of its proper divisors (173400922).

212284790 is a wasteful number, since it uses less digits than its factorization.

212284790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198511.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 212284790 is about 14569.9962251196. The cubic root of 212284790 is about 596.5400773167.

The spelling of 212284790 in words is "two hundred twelve million, two hundred eighty-four thousand, seven hundred ninety".