405231201 has 16 divisors (see below), whose sum is σ = 600707520. Its totient is φ = 269989920.

The previous prime is 405231191. The next prime is 405231247. The reversal of 405231201 is 102132504.

It is not a de Polignac number, because 405231201 - 2²¹ = 403134049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405231901) 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, 54646 + ... + 61616.

It is an arithmetic number, because the mean of its divisors is an integer number (37544220).

Almost surely, 2^405231201 is an apocalyptic number.

It is an amenable number.

405231201 is a deficient number, since it is larger than the sum of its proper divisors (195476319).

405231201 is a wasteful number, since it uses less digits than its factorization.

405231201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133 (or 9127 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 405231201 is about 20130.3552129613. The cubic root of 405231201 is about 740.0043833439.

Adding to 405231201 its reverse (102132504), we get a palindrome (507363705).

It can be divided in two parts, 4052 and 31201, that added together give a palindrome (35253).

The spelling of 405231201 in words is "four hundred five million, two hundred thirty-one thousand, two hundred one".