200668736 has 14 divisors (see below), whose sum is σ = 398202150. Its totient is φ = 100334336.

The previous prime is 200668733. The next prime is 200668771. The reversal of 200668736 is 637866002.

It can be written as a sum of positive squares in only one way, i.e., 197571136 + 3097600 = 14056^2 + 1760^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 200668736.

It is not an unprimeable number, because it can be changed into a prime (200668733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567661 + ... + 1567788.

Almost surely, 2^200668736 is an apocalyptic number.

It is an amenable number.

200668736 is a deficient number, since it is larger than the sum of its proper divisors (197533414).

200668736 is an equidigital number, since it uses as much as digits as its factorization.

200668736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135461 (or 3135451 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 200668736 is about 14165.7592807445. The cubic root of 200668736 is about 585.4546211624.

The spelling of 200668736 in words is "two hundred million, six hundred sixty-eight thousand, seven hundred thirty-six".