404668 has 24 divisors (see below), whose sum is σ = 819504. Its totient is φ = 172800.

The previous prime is 404597. The next prime is 404671. The reversal of 404668 is 866404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (34146).

2⁴⁰⁴⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

404668 is an abundant number, since it is smaller than the sum of its proper divisors (414836).

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

404668 is a wasteful number, since it uses less digits than its factorization.

404668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 404668 is about 636.1352057542. The cubic root of 404668 is about 73.9661398535.

It can be divided in two parts, 4046 and 68, that added together give a palindrome (4114).

The spelling of 404668 in words is "four hundred four thousand, six hundred sixty-eight".