406441 has 8 divisors (see below), whose sum is σ = 479744. Its totient is φ = 336960.

The previous prime is 406423. The next prime is 406447. The reversal of 406441 is 144604.

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

It is a cyclic number.

It is not a de Polignac number, because 406441 - 2⁷ = 406313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (59968).

2⁴⁰⁶⁴⁴¹ is an apocalyptic number.

It is an amenable number.

406441 is a deficient number, since it is larger than the sum of its proper divisors (73303).

406441 is a wasteful number, since it uses less digits than its factorization.

406441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 406441 is about 637.5272543194. The cubic root of 406441 is about 74.0740067993.

The spelling of 406441 in words is "four hundred six thousand, four hundred forty-one".