405662 has 16 divisors (see below), whose sum is σ = 641520. Its totient is φ = 192192.

The previous prime is 405659. The next prime is 405667. The reversal of 405662 is 266504.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 405662.

It is not an unprimeable number, because it can be changed into a prime (405667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4514 + ... + 4602.

It is an arithmetic number, because the mean of its divisors is an integer number (40095).

2⁴⁰⁵⁶⁶² is an apocalyptic number.

405662 is a deficient number, since it is larger than the sum of its proper divisors (235858).

405662 is a wasteful number, since it uses less digits than its factorization.

405662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 405662 is about 636.9160070213. The cubic root of 405662 is about 74.0266521966.

The spelling of 405662 in words is "four hundred five thousand, six hundred sixty-two".