206423344 has 40 divisors (see below), whose sum is σ = 419258880. Its totient is φ = 98269248.

The previous prime is 206423339. The next prime is 206423369. The reversal of 206423344 is 443324602.

It is a super-2 number, since 2×206423344² = 85221193896284672, which contains 22 as substring.

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, 86779 + ... + 89125.

It is an arithmetic number, because the mean of its divisors is an integer number (10481472).

Almost surely, 2^206423344 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 206423344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209629440).

206423344 is an abundant number, since it is smaller than the sum of its proper divisors (212835536).

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

206423344 is a wasteful number, since it uses less digits than its factorization.

206423344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617 (or 2611 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 206423344 is about 14367.4404122655. The cubic root of 206423344 is about 590.9983518477.

Adding to 206423344 its reverse (443324602), we get a palindrome (649747946).

The spelling of 206423344 in words is "two hundred six million, four hundred twenty-three thousand, three hundred forty-four".