206247144 has 16 divisors (see below), whose sum is σ = 515617920. Its totient is φ = 68749040.

The previous prime is 206247143. The next prime is 206247149. The reversal of 206247144 is 441742602.

It is not an unprimeable number, because it can be changed into a prime (206247143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4296792 + ... + 4296839.

It is an arithmetic number, because the mean of its divisors is an integer number (32226120).

Almost surely, 2^206247144 is an apocalyptic number.

206247144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

206247144 is an abundant number, since it is smaller than the sum of its proper divisors (309370776).

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

206247144 is a wasteful number, since it uses less digits than its factorization.

206247144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8593640 (or 8593636 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 206247144 is about 14361.3071828438. The cubic root of 206247144 is about 590.8301480798.

Adding to 206247144 its reverse (441742602), we get a palindrome (647989746).

The spelling of 206247144 in words is "two hundred six million, two hundred forty-seven thousand, one hundred forty-four".