200144394 has 12 divisors (see below), whose sum is σ = 433646226. Its totient is φ = 66714792.

The previous prime is 200144393. The next prime is 200144431. The reversal of 200144394 is 493441002.

It can be written as a sum of positive squares in only one way, i.e., 157176369 + 42968025 = 12537^2 + 6555^2 .

It is not an unprimeable number, because it can be changed into a prime (200144393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5559549 + ... + 5559584.

Almost surely, 2^200144394 is an apocalyptic number.

200144394 is an abundant number, since it is smaller than the sum of its proper divisors (233501832).

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

200144394 is a wasteful number, since it uses less digits than its factorization.

200144394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119141 (or 11119138 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 200144394 is about 14147.2398014595. The cubic root of 200144394 is about 584.9442506593.

Adding to 200144394 its reverse (493441002), we get a palindrome (693585396).

The spelling of 200144394 in words is "two hundred million, one hundred forty-four thousand, three hundred ninety-four".