406830289 has 4 divisors (see below), whose sum is σ = 413499700. Its totient is φ = 400160880.

The previous prime is 406830283. The next prime is 406830317. The reversal of 406830289 is 982038604.

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 169208064 + 237622225 = 13008^2 + 15415^2 .

It is a cyclic number.

It is not a de Polignac number, because 406830289 - 2⁷ = 406830161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406830283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3334614 + ... + 3334735.

It is an arithmetic number, because the mean of its divisors is an integer number (103374925).

Almost surely, 2^406830289 is an apocalyptic number.

It is an amenable number.

406830289 is a deficient number, since it is larger than the sum of its proper divisors (6669411).

406830289 is an equidigital number, since it uses as much as digits as its factorization.

406830289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6669410.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 406830289 is about 20170.0344322958. The cubic root of 406830289 is about 740.9764860260.

The spelling of 406830289 in words is "four hundred six million, eight hundred thirty thousand, two hundred eighty-nine".