405452242201 has 4 divisors (see below), whose sum is σ = 411503768272. Its totient is φ = 399400716132.

The previous prime is 405452242199. The next prime is 405452242213. The reversal of 405452242201 is 102242254504.

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 405452242201 - 2¹ = 405452242199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405452242241) 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, 3025762935 + ... + 3025763068.

It is an arithmetic number, because the mean of its divisors is an integer number (102875942068).

Almost surely, 2^405452242201 is an apocalyptic number.

It is an amenable number.

405452242201 is a deficient number, since it is larger than the sum of its proper divisors (6051526071).

405452242201 is an equidigital number, since it uses as much as digits as its factorization.

405452242201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051526070.

The product of its (nonzero) digits is 25600, while the sum is 31.

Adding to 405452242201 its reverse (102242254504), we get a palindrome (507694496705).

The spelling of 405452242201 in words is "four hundred five billion, four hundred fifty-two million, two hundred forty-two thousand, two hundred one".