406422640204 has 18 divisors (see below), whose sum is σ = 827360375100. Its totient is φ = 174181131432.

The previous prime is 406422640177. The next prime is 406422640207. The reversal of 406422640204 is 402046224604.

It is a self number, because there is not a number n which added to its sum of digits gives 406422640204.

It is not an unprimeable number, because it can be changed into a prime (406422640207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1036792254 + ... + 1036792645.

Almost surely, 2^406422640204 is an apocalyptic number.

It is an amenable number.

406422640204 is an abundant number, since it is smaller than the sum of its proper divisors (420937734896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406422640204 is a wasteful number, since it uses less digits than its factorization.

406422640204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073584917 (or 2073584908 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 406422640204 its reverse (402046224604), we get a palindrome (808468864808).

The spelling of 406422640204 in words is "four hundred six billion, four hundred twenty-two million, six hundred forty thousand, two hundred four".