206426344 has 8 divisors (see below), whose sum is σ = 387049410. Its totient is φ = 103213168.

The previous prime is 206426329. The next prime is 206426369. The reversal of 206426344 is 443624602.

It can be written as a sum of positive squares in only one way, i.e., 205348900 + 1077444 = 14330^2 + 1038^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×206426344² = 85223670994412672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12901639 + ... + 12901654.

Almost surely, 2^206426344 is an apocalyptic number.

It is an amenable number.

206426344 is a deficient number, since it is larger than the sum of its proper divisors (180623066).

206426344 is a wasteful number, since it uses less digits than its factorization.

206426344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25803299 (or 25803295 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The square root of 206426344 is about 14367.5448146160. The cubic root of 206426344 is about 591.0012148742.

The spelling of 206426344 in words is "two hundred six million, four hundred twenty-six thousand, three hundred forty-four".