404007400668 has 48 divisors (see below), whose sum is σ = 959361503744. Its totient is φ = 132297580800.

The previous prime is 404007400661. The next prime is 404007400759. The reversal of 404007400668 is 866004700404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404007400661) 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, 389533 + ... + 979668.

Almost surely, 2^404007400668 is an apocalyptic number.

It is an amenable number.

404007400668 is an abundant number, since it is smaller than the sum of its proper divisors (555354103076).

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

404007400668 is a wasteful number, since it uses less digits than its factorization.

404007400668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369642 (or 1369640 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 404007400668 in words is "four hundred four billion, seven million, four hundred thousand, six hundred sixty-eight".