206223312 has 20 divisors (see below), whose sum is σ = 532743680. Its totient is φ = 68741088.

The previous prime is 206223299. The next prime is 206223341. The reversal of 206223312 is 213322602.

206223312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2148112 + ... + 2148207.

It is an arithmetic number, because the mean of its divisors is an integer number (26637184).

Almost surely, 2^206223312 is an apocalyptic number.

It is an amenable number.

206223312 is an abundant number, since it is smaller than the sum of its proper divisors (326520368).

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

206223312 is a wasteful number, since it uses less digits than its factorization.

206223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4296330 (or 4296324 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 206223312 is about 14360.4774293893. The cubic root of 206223312 is about 590.8073902593.

Adding to 206223312 its reverse (213322602), we get a palindrome (419545914).

The spelling of 206223312 in words is "two hundred six million, two hundred twenty-three thousand, three hundred twelve".