405044201 has 4 divisors (see below), whose sum is σ = 405785232. Its totient is φ = 404303172.

The previous prime is 405044197. The next prime is 405044257. The reversal of 405044201 is 102440504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 405044201 - 2² = 405044197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405044701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369695 + ... + 370788.

It is an arithmetic number, because the mean of its divisors is an integer number (101446308).

Almost surely, 2^405044201 is an apocalyptic number.

It is an amenable number.

405044201 is a deficient number, since it is larger than the sum of its proper divisors (741031).

405044201 is an equidigital number, since it uses as much as digits as its factorization.

405044201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741030.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 405044201 is about 20125.7099502105. The cubic root of 405044201 is about 739.8905371323.

Adding to 405044201 its reverse (102440504), we get a palindrome (507484705).

The spelling of 405044201 in words is "four hundred five million, forty-four thousand, two hundred one".