420014449 has 2 divisors, whose sum is σ = 420014450. Its totient is φ = 420014448.

The previous prime is 420014429. The next prime is 420014471. The reversal of 420014449 is 944410024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416976400 + 3038049 = 20420^2 + 1743^2 .

It is a cyclic number.

It is not a de Polignac number, because 420014449 - 2⁷ = 420014321 is a prime.

It is not a weakly prime, because it can be changed into another prime (420014429) 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, 210007224 + 210007225.

It is an arithmetic number, because the mean of its divisors is an integer number (210007225).

Almost surely, 2^420014449 is an apocalyptic number.

It is an amenable number.

420014449 is a deficient number, since it is larger than the sum of its proper divisors (1).

420014449 is an equidigital number, since it uses as much as digits as its factorization.

420014449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 420014449 is about 20494.2540483912. The cubic root of 420014449 is about 748.8958264581.

The spelling of 420014449 in words is "four hundred twenty million, fourteen thousand, four hundred forty-nine".