406602 has 36 divisors (see below), whose sum is σ = 1027026. Its totient is φ = 115920.

The previous prime is 406591. The next prime is 406631. The reversal of 406602 is 206604.

406602 is a `hidden beast` number, since 4 + 0 + 660 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 370881 + 35721 = 609^2 + 189^2 .

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

It is an unprimeable number.

406602 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 17 ways as a sum of consecutive naturals, for example, 652 + ... + 1112.

2⁴⁰⁶⁶⁰² is an apocalyptic number.

406602 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 406602, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513513).

406602 is an abundant number, since it is smaller than the sum of its proper divisors (620424).

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

406602 is a wasteful number, since it uses less digits than its factorization.

406602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 406602 is about 637.6535109289. The cubic root of 406602 is about 74.0837862759.

The spelling of 406602 in words is "four hundred six thousand, six hundred two".