200400343 has 8 divisors (see below), whose sum is σ = 235435536. Its totient is φ = 168168000.

The previous prime is 200400329. The next prime is 200400373. The reversal of 200400343 is 343004002.

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

It is a de Polignac number, because none of the positive numbers 2^k-200400343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200400313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700558 + ... + 700843.

It is an arithmetic number, because the mean of its divisors is an integer number (29429442).

Almost surely, 2^200400343 is an apocalyptic number.

200400343 is a deficient number, since it is larger than the sum of its proper divisors (35035193).

200400343 is a wasteful number, since it uses less digits than its factorization.

200400343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401425.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 200400343 is about 14156.2828101165. The cubic root of 200400343 is about 585.1934909176.

Adding to 200400343 its reverse (343004002), we get a palindrome (543404345).

The spelling of 200400343 in words is "two hundred million, four hundred thousand, three hundred forty-three".