406222338647 has 4 divisors (see below), whose sum is σ = 406279536000. Its totient is φ = 406165141296.

The previous prime is 406222338581. The next prime is 406222338649. The reversal of 406222338647 is 746833222604.

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 406222338647 - 2¹⁴ = 406222322263 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 (406222338649) 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, 28588022 + ... + 28602227.

It is an arithmetic number, because the mean of its divisors is an integer number (101569884000).

Almost surely, 2^406222338647 is an apocalyptic number.

406222338647 is a deficient number, since it is larger than the sum of its proper divisors (57197353).

406222338647 is an equidigital number, since it uses as much as digits as its factorization.

406222338647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57197352.

The product of its (nonzero) digits is 2322432, while the sum is 47.

The spelling of 406222338647 in words is "four hundred six billion, two hundred twenty-two million, three hundred thirty-eight thousand, six hundred forty-seven".