406650 has 24 divisors (see below), whose sum is σ = 1008864. Its totient is φ = 108400.

The previous prime is 406649. The next prime is 406661. The reversal of 406650 is 56604.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 406650.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1206 + ... + 1505.

It is an arithmetic number, because the mean of its divisors is an integer number (42036).

2⁴⁰⁶⁶⁵⁰ is an apocalyptic number.

406650 is an abundant number, since it is smaller than the sum of its proper divisors (602214).

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

406650 is a wasteful number, since it uses less digits than its factorization.

406650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 406650 is about 637.6911478137. The cubic root of 406650 is about 74.0867013967.

The spelling of 406650 in words is "four hundred six thousand, six hundred fifty".