200340421 has 8 divisors (see below), whose sum is σ = 201649280. Its totient is φ = 199035792.

The previous prime is 200340407. The next prime is 200340431. The reversal of 200340421 is 124043002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200340421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200340395 and 200340404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200340431) 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 7 ways as a sum of consecutive naturals, for example, 187936 + ... + 188998.

It is an arithmetic number, because the mean of its divisors is an integer number (25206160).

Almost surely, 2^200340421 is an apocalyptic number.

It is an amenable number.

200340421 is a deficient number, since it is larger than the sum of its proper divisors (1308859).

200340421 is a wasteful number, since it uses less digits than its factorization.

200340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 200340421 is about 14154.1662064567. The cubic root of 200340421 is about 585.1351585823.

Adding to 200340421 its reverse (124043002), we get a palindrome (324383423).

It can be divided in two parts, 2003 and 40421, that added together give a palindrome (42424).

The spelling of 200340421 in words is "two hundred million, three hundred forty thousand, four hundred twenty-one".