406841 has 4 divisors (see below), whose sum is σ = 420900. Its totient is φ = 392784.

The previous prime is 406837. The next prime is 406859. The reversal of 406841 is 148604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87616 + 319225 = 296^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 406841 - 2² = 406837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406811) 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, 6986 + ... + 7043.

It is an arithmetic number, because the mean of its divisors is an integer number (105225).

2⁴⁰⁶⁸⁴¹ is an apocalyptic number.

It is an amenable number.

406841 is a deficient number, since it is larger than the sum of its proper divisors (14059).

406841 is a wasteful number, since it uses less digits than its factorization.

406841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14058.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 406841 is about 637.8408892506. The cubic root of 406841 is about 74.0982988762.

The spelling of 406841 in words is "four hundred six thousand, eight hundred forty-one".