401000449 has 2 divisors, whose sum is σ = 401000450. Its totient is φ = 401000448.

The previous prime is 401000443. The next prime is 401000477. The reversal of 401000449 is 944000104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384944400 + 16056049 = 19620^2 + 4007^2 .

It is a cyclic number.

It is not a de Polignac number, because 401000449 - 2⁵ = 401000417 is a prime.

It is not a weakly prime, because it can be changed into another prime (401000443) 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, 200500224 + 200500225.

It is an arithmetic number, because the mean of its divisors is an integer number (200500225).

Almost surely, 2^401000449 is an apocalyptic number.

It is an amenable number.

401000449 is a deficient number, since it is larger than the sum of its proper divisors (1).

401000449 is an equidigital number, since it uses as much as digits as its factorization.

401000449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 401000449 is about 20024.9956054927. The cubic root of 401000449 is about 737.4200692460.

The spelling of 401000449 in words is "four hundred one million, four hundred forty-nine", and thus it is an aban number.