206244445 has 16 divisors (see below), whose sum is σ = 270832320. Its totient is φ = 149529600.

The previous prime is 206244443. The next prime is 206244461. The reversal of 206244445 is 544442602.

It is a happy number.

It is not a de Polignac number, because 206244445 - 2¹ = 206244443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206244443) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 12541 + ... + 23869.

It is an arithmetic number, because the mean of its divisors is an integer number (16927020).

Almost surely, 2^206244445 is an apocalyptic number.

It is an amenable number.

206244445 is a deficient number, since it is larger than the sum of its proper divisors (64587875).

206244445 is a wasteful number, since it uses less digits than its factorization.

206244445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11676.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 206244445 is about 14361.2132147671. The cubic root of 206244445 is about 590.8275708199.

The spelling of 206244445 in words is "two hundred six million, two hundred forty-four thousand, four hundred forty-five".