406459 has 4 divisors (see below), whose sum is σ = 408240. Its totient is φ = 404680.

The previous prime is 406447. The next prime is 406481. The reversal of 406459 is 954604.

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

It is a cyclic number.

It is not a de Polignac number, because 406459 - 2⁷ = 406331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406499) 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, 487 + ... + 1024.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

2⁴⁰⁶⁴⁵⁹ is an apocalyptic number.

406459 is a deficient number, since it is larger than the sum of its proper divisors (1781).

406459 is a wasteful number, since it uses less digits than its factorization.

406459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 406459 is about 637.5413712066. The cubic root of 406459 is about 74.0751002852.

The spelling of 406459 in words is "four hundred six thousand, four hundred fifty-nine".