812424222 has 16 divisors (see below), whose sum is σ = 1805387280. Its totient is φ = 270808056.

The previous prime is 812424199. The next prime is 812424233. The reversal of 812424222 is 222424218.

812424222 is a `hidden beast` number, since 8 + 12 + 424 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 7522393 + ... + 7522500.

It is an arithmetic number, because the mean of its divisors is an integer number (112836705).

Almost surely, 2^812424222 is an apocalyptic number.

812424222 is an abundant number, since it is smaller than the sum of its proper divisors (992963058).

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

812424222 is a wasteful number, since it uses less digits than its factorization.

812424222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15044904 (or 15044898 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 812424222 is about 28503.0563624324. The cubic root of 812424222 is about 933.0987788429.

The spelling of 812424222 in words is "eight hundred twelve million, four hundred twenty-four thousand, two hundred twenty-two".