406208664228 has 48 divisors (see below), whose sum is σ = 962392862144. Its totient is φ = 133322872320.

The previous prime is 406208664221. The next prime is 406208664229. The reversal of 406208664228 is 822466802604.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (406208664221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1723176 + ... + 1944672.

Almost surely, 2^406208664228 is an apocalyptic number.

It is an amenable number.

406208664228 is an abundant number, since it is smaller than the sum of its proper divisors (556184197916).

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

406208664228 is a wasteful number, since it uses less digits than its factorization.

406208664228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223852 (or 223850 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 406208664228 in words is "four hundred six billion, two hundred eight million, six hundred sixty-four thousand, two hundred twenty-eight".