200644473 has 16 divisors (see below), whose sum is σ = 270373376. Its totient is φ = 132347520.

The previous prime is 200644471. The next prime is 200644481. The reversal of 200644473 is 374446002.

It is not a de Polignac number, because 200644473 - 2¹ = 200644471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200644473.

It is not an unprimeable number, because it can be changed into a prime (200644471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120261 + ... + 121917.

It is an arithmetic number, because the mean of its divisors is an integer number (16898336).

Almost surely, 2^200644473 is an apocalyptic number.

It is an amenable number.

200644473 is a deficient number, since it is larger than the sum of its proper divisors (69728903).

200644473 is a wasteful number, since it uses less digits than its factorization.

200644473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 200644473 is about 14164.9028588268. The cubic root of 200644473 is about 585.4310242994.

The spelling of 200644473 in words is "two hundred million, six hundred forty-four thousand, four hundred seventy-three".