406259 has 6 divisors (see below), whose sum is σ = 472644. Its totient is φ = 348180.

The previous prime is 406253. The next prime is 406267. The reversal of 406259 is 952604.

It is not a de Polignac number, because 406259 - 2¹⁶ = 340723 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 406259.

It is not an unprimeable number, because it can be changed into a prime (406253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4097 + ... + 4194.

It is an arithmetic number, because the mean of its divisors is an integer number (78774).

2⁴⁰⁶²⁵⁹ is an apocalyptic number.

406259 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

406259 is a deficient number, since it is larger than the sum of its proper divisors (66385).

406259 is an equidigital number, since it uses as much as digits as its factorization.

406259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8305 (or 8298 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 406259 is about 637.3844993409. The cubic root of 406259 is about 74.0629486285.

The spelling of 406259 in words is "four hundred six thousand, two hundred fifty-nine".