406468668 has 24 divisors (see below), whose sum is σ = 948959872. Its totient is φ = 135413424.

The previous prime is 406468663. The next prime is 406468693. The reversal of 406468668 is 866864604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406468661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15321 + ... + 32367.

Almost surely, 2^406468668 is an apocalyptic number.

It is an amenable number.

406468668 is an abundant number, since it is smaller than the sum of its proper divisors (542491204).

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

406468668 is a wasteful number, since it uses less digits than its factorization.

406468668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19041 (or 19039 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The square root of 406468668 is about 20161.0681264659. The cubic root of 406468668 is about 740.7568759524.

The spelling of 406468668 in words is "four hundred six million, four hundred sixty-eight thousand, six hundred sixty-eight".