406662 has 8 divisors (see below), whose sum is σ = 813336. Its totient is φ = 135552.

The previous prime is 406661. The next prime is 406673. The reversal of 406662 is 266604.

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

406662 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33883 + ... + 33894.

It is an arithmetic number, because the mean of its divisors is an integer number (101667).

2⁴⁰⁶⁶⁶² is an apocalyptic number.

406662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

406662 is a wasteful number, since it uses less digits than its factorization.

406662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67782.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 406662 is about 637.7005566879. The cubic root of 406662 is about 74.0874301410.

The spelling of 406662 in words is "four hundred six thousand, six hundred sixty-two".