404622 has 32 divisors (see below), whose sum is σ = 921600. Its totient is φ = 131544.

The previous prime is 404597. The next prime is 404671. The reversal of 404622 is 226404.

404622 is a `hidden beast` number, since 40 + 4 + 622 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 404595 and 404604.

It is a congruent number.

It is an unprimeable number.

404622 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3123 + ... + 3249.

It is an arithmetic number, because the mean of its divisors is an integer number (28800).

2⁴⁰⁴⁶²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460800).

404622 is an abundant number, since it is smaller than the sum of its proper divisors (516978).

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

404622 is a wasteful number, since it uses less digits than its factorization.

404622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 404622 is about 636.0990488910. The cubic root of 404622 is about 73.9633370857.

The spelling of 404622 in words is "four hundred four thousand, six hundred twenty-two".