406648 has 16 divisors (see below), whose sum is σ = 831960. Its totient is φ = 184800.

The previous prime is 406633. The next prime is 406649. The reversal of 406648 is 846604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406649) by changing a digit.

406648 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 3 ways as a sum of consecutive naturals, for example, 2223 + ... + 2398.

2⁴⁰⁶⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

406648 is an abundant number, since it is smaller than the sum of its proper divisors (425312).

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

406648 is a wasteful number, since it uses less digits than its factorization.

406648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638 (or 4634 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 406648 is about 637.6895796546. The cubic root of 406648 is about 74.0865799379.

It can be divided in two parts, 4066 and 48, that added together give a palindrome (4114).

The spelling of 406648 in words is "four hundred six thousand, six hundred forty-eight".