405332201 has 4 divisors (see below), whose sum is σ = 408248400. Its totient is φ = 402416004.

The previous prime is 405332171. The next prime is 405332203. The reversal of 405332201 is 102233504.

It is a happy number.

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 405332201 - 2¹⁴ = 405315817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405332203) 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, 1457891 + ... + 1458168.

It is an arithmetic number, because the mean of its divisors is an integer number (102062100).

Almost surely, 2^405332201 is an apocalyptic number.

It is an amenable number.

405332201 is a deficient number, since it is larger than the sum of its proper divisors (2916199).

405332201 is a wasteful number, since it uses less digits than its factorization.

405332201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916198.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 405332201 is about 20132.8637058914. The cubic root of 405332201 is about 740.0658579078.

Adding to 405332201 its reverse (102233504), we get a palindrome (507565705).

The spelling of 405332201 in words is "four hundred five million, three hundred thirty-two thousand, two hundred one".