406241 has 4 divisors (see below), whose sum is σ = 443184. Its totient is φ = 369300.

The previous prime is 406207. The next prime is 406247. The reversal of 406241 is 142604.

406241 is nontrivially palindromic in base 8.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 406241 - 2⁶ = 406177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406247) 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, 18455 + ... + 18476.

It is an arithmetic number, because the mean of its divisors is an integer number (110796).

2⁴⁰⁶²⁴¹ is an apocalyptic number.

It is an amenable number.

406241 is a deficient number, since it is larger than the sum of its proper divisors (36943).

406241 is a wasteful number, since it uses less digits than its factorization.

406241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36942.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 406241 is about 637.3703789791. The cubic root of 406241 is about 74.0618547838.

Adding to 406241 its reverse (142604), we get a palindrome (548845).

The spelling of 406241 in words is "four hundred six thousand, two hundred forty-one".