409004273 has 2 divisors, whose sum is σ = 409004274. Its totient is φ = 409004272.

The previous prime is 409004231. The next prime is 409004333. The reversal of 409004273 is 372400904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387026929 + 21977344 = 19673^2 + 4688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409004273 is a prime.

It is not a weakly prime, because it can be changed into another prime (409004213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204502136 + 204502137.

It is an arithmetic number, because the mean of its divisors is an integer number (204502137).

Almost surely, 2^409004273 is an apocalyptic number.

It is an amenable number.

409004273 is a deficient number, since it is larger than the sum of its proper divisors (1).

409004273 is an equidigital number, since it uses as much as digits as its factorization.

409004273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 409004273 is about 20223.8540590067. The cubic root of 409004273 is about 742.2939970478.

The spelling of 409004273 in words is "four hundred nine million, four thousand, two hundred seventy-three".