405602 has 8 divisors (see below), whose sum is σ = 613200. Its totient is φ = 201204.

The previous prime is 405599. The next prime is 405607. The reversal of 405602 is 206504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (405607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452 + ... + 1007.

It is an arithmetic number, because the mean of its divisors is an integer number (76650).

2⁴⁰⁵⁶⁰² is an apocalyptic number.

405602 is a deficient number, since it is larger than the sum of its proper divisors (207598).

405602 is a wasteful number, since it uses less digits than its factorization.

405602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 405602 is about 636.8689033074. The cubic root of 405602 is about 74.0230023451.

The spelling of 405602 in words is "four hundred five thousand, six hundred two".