212284536 has 16 divisors (see below), whose sum is σ = 530711400. Its totient is φ = 70761504.

The previous prime is 212284493. The next prime is 212284561. The reversal of 212284536 is 635482212.

212284536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212284497 and 212284506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4422571 + ... + 4422618.

Almost surely, 2^212284536 is an apocalyptic number.

It is an amenable number.

212284536 is an abundant number, since it is smaller than the sum of its proper divisors (318426864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212284536 is a wasteful number, since it uses less digits than its factorization.

212284536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8845198 (or 8845194 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 212284536 is about 14569.9875085739. The cubic root of 212284536 is about 596.5398393953.

The spelling of 212284536 in words is "two hundred twelve million, two hundred eighty-four thousand, five hundred thirty-six".