201404331 has 12 divisors (see below), whose sum is σ = 291216120. Its totient is φ = 134131680.

The previous prime is 201404327. The next prime is 201404363. The reversal of 201404331 is 133404102.

It is not a de Polignac number, because 201404331 - 2² = 201404327 is a prime.

It is a super-2 number, since 2×201404331² = 81127409091115122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201404531) 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 11 ways as a sum of consecutive naturals, for example, 1810 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (24268010).

Almost surely, 2^201404331 is an apocalyptic number.

201404331 is a deficient number, since it is larger than the sum of its proper divisors (89811789).

201404331 is a wasteful number, since it uses less digits than its factorization.

201404331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22986 (or 22983 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 201404331 is about 14191.6993697020. The cubic root of 201404331 is about 586.1691193394.

Adding to 201404331 its reverse (133404102), we get a palindrome (334808433).

The spelling of 201404331 in words is "two hundred one million, four hundred four thousand, three hundred thirty-one".