405622 has 12 divisors (see below), whose sum is σ = 707940. Its totient is φ = 173796.

The previous prime is 405611. The next prime is 405641. The reversal of 405622 is 226504.

405622 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 405622.

It is a congruent number.

It is an unprimeable number.

405622 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 5 ways as a sum of consecutive naturals, for example, 1972 + ... + 2167.

It is an arithmetic number, because the mean of its divisors is an integer number (58995).

2⁴⁰⁵⁶²² is an apocalyptic number.

405622 is a deficient number, since it is larger than the sum of its proper divisors (302318).

405622 is a wasteful number, since it uses less digits than its factorization.

405622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155 (or 4148 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 405622 is about 636.8846049325. The cubic root of 405622 is about 74.0242190023.

The spelling of 405622 in words is "four hundred five thousand, six hundred twenty-two".