200400331 has 4 divisors (see below), whose sum is σ = 201842200. Its totient is φ = 198958464.

The previous prime is 200400329. The next prime is 200400373. The reversal of 200400331 is 133004002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200400331 - 2¹ = 200400329 is a prime.

It is a super-2 number, since 2×200400331² = 80320585329819122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200400931) 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 3 ways as a sum of consecutive naturals, for example, 720726 + ... + 721003.

It is an arithmetic number, because the mean of its divisors is an integer number (50460550).

Almost surely, 2^200400331 is an apocalyptic number.

200400331 is a deficient number, since it is larger than the sum of its proper divisors (1441869).

200400331 is a wasteful number, since it uses less digits than its factorization.

200400331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441868.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 200400331 is about 14156.2823862764. The cubic root of 200400331 is about 585.1934792371.

Adding to 200400331 its reverse (133004002), we get a palindrome (333404333).

The spelling of 200400331 in words is "two hundred million, four hundred thousand, three hundred thirty-one".