404547668 has 12 divisors (see below), whose sum is σ = 809095392. Its totient is φ = 173377560.

The previous prime is 404547617. The next prime is 404547701. The reversal of 404547668 is 866745404.

404547668 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7224038 + ... + 7224093.

It is an arithmetic number, because the mean of its divisors is an integer number (67424616).

Almost surely, 2^404547668 is an apocalyptic number.

It is an amenable number.

404547668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404547668 is a wasteful number, since it uses less digits than its factorization.

404547668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14448142 (or 14448140 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 404547668 is about 20113.3703789295. The cubic root of 404547668 is about 739.5880760758.

The spelling of 404547668 in words is "four hundred four million, five hundred forty-seven thousand, six hundred sixty-eight".