406680259 has 2 divisors, whose sum is σ = 406680260. Its totient is φ = 406680258.

The previous prime is 406680257. The next prime is 406680293. The reversal of 406680259 is 952086604.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 406680259 - 2¹ = 406680257 is a prime.

Together with 406680257, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (406680257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203340129 + 203340130.

It is an arithmetic number, because the mean of its divisors is an integer number (203340130).

Almost surely, 2^406680259 is an apocalyptic number.

406680259 is a deficient number, since it is larger than the sum of its proper divisors (1).

406680259 is an equidigital number, since it uses as much as digits as its factorization.

406680259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 406680259 is about 20166.3149583656. The cubic root of 406680259 is about 740.8853895880.

The spelling of 406680259 in words is "four hundred six million, six hundred eighty thousand, two hundred fifty-nine".