200442405 has 16 divisors (see below), whose sum is σ = 320883840. Its totient is φ = 106843968.

The previous prime is 200442397. The next prime is 200442409. The reversal of 200442405 is 504244002.

It is not a de Polignac number, because 200442405 - 2³ = 200442397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200442409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48864 + ... + 52806.

It is an arithmetic number, because the mean of its divisors is an integer number (20055240).

Almost surely, 2^200442405 is an apocalyptic number.

It is an amenable number.

200442405 is a deficient number, since it is larger than the sum of its proper divisors (120441435).

200442405 is a wasteful number, since it uses less digits than its factorization.

200442405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 200442405 is about 14157.7683622808. The cubic root of 200442405 is about 585.2344301135.

Adding to 200442405 its reverse (504244002), we get a palindrome (704686407).

The spelling of 200442405 in words is "two hundred million, four hundred forty-two thousand, four hundred five".