206738450 has 12 divisors (see below), whose sum is σ = 384533610. Its totient is φ = 82695360.

The previous prime is 206738443. The next prime is 206738459. The reversal of 206738450 is 54837602.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 179479609 + 27258841 = 13397^2 + 5221^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 206738450.

It is not an unprimeable number, because it can be changed into a prime (206738459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2067335 + ... + 2067434.

Almost surely, 2^206738450 is an apocalyptic number.

206738450 is a deficient number, since it is larger than the sum of its proper divisors (177795160).

206738450 is a wasteful number, since it uses less digits than its factorization.

206738450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134781 (or 4134776 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 206738450 is about 14378.4022060867. The cubic root of 206738450 is about 591.2989193522.

The spelling of 206738450 in words is "two hundred six million, seven hundred thirty-eight thousand, four hundred fifty".