206022224 has 60 divisors (see below), whose sum is σ = 423157812. Its totient is φ = 97152000.

The previous prime is 206022203. The next prime is 206022233. The reversal of 206022224 is 422220602.

It can be written as a sum of positive squares in 2 ways, for example, as 180418624 + 25603600 = 13432^2 + 5060^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206022196 and 206022205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 854744 + ... + 854984.

Almost surely, 2^206022224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206022224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211578906).

206022224 is an abundant number, since it is smaller than the sum of its proper divisors (217135588).

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

206022224 is a wasteful number, since it uses less digits than its factorization.

206022224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 206022224 is about 14353.4742832528. The cubic root of 206022224 is about 590.6152960491.

Adding to 206022224 its reverse (422220602), we get a palindrome (628242826).

The spelling of 206022224 in words is "two hundred six million, twenty-two thousand, two hundred twenty-four".