206144452 has 12 divisors (see below), whose sum is σ = 379739920. Its totient is φ = 97647336.

The previous prime is 206144429. The next prime is 206144459. The reversal of 206144452 is 254441602.

It is a self number, because there is not a number n which added to its sum of digits gives 206144452.

It is not an unprimeable number, because it can be changed into a prime (206144459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1356138 + ... + 1356289.

Almost surely, 2^206144452 is an apocalyptic number.

It is an amenable number.

206144452 is a deficient number, since it is larger than the sum of its proper divisors (173595468).

206144452 is a wasteful number, since it uses less digits than its factorization.

206144452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712450 (or 2712448 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 206144452 is about 14357.7314364074. The cubic root of 206144452 is about 590.7320722130.

The spelling of 206144452 in words is "two hundred six million, one hundred forty-four thousand, four hundred fifty-two".