406211423 has 4 divisors (see below), whose sum is σ = 406298640. Its totient is φ = 406124208.

The previous prime is 406211417. The next prime is 406211437. The reversal of 406211423 is 324112604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406211423 - 2⁸ = 406211167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406211453) 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, 36203 + ... + 46076.

It is an arithmetic number, because the mean of its divisors is an integer number (101574660).

Almost surely, 2^406211423 is an apocalyptic number.

406211423 is a deficient number, since it is larger than the sum of its proper divisors (87217).

406211423 is an equidigital number, since it uses as much as digits as its factorization.

406211423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87216.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 406211423 is about 20154.6873704357. The cubic root of 406211423 is about 740.6005734447.

The spelling of 406211423 in words is "four hundred six million, two hundred eleven thousand, four hundred twenty-three".