420450193 has 2 divisors, whose sum is σ = 420450194. Its totient is φ = 420450192.

The previous prime is 420450167. The next prime is 420450197. The reversal of 420450193 is 391054024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 323388289 + 97061904 = 17983^2 + 9852^2 .

It is a cyclic number.

It is not a de Polignac number, because 420450193 - 2⁵ = 420450161 is a prime.

It is not a weakly prime, because it can be changed into another prime (420450197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210225096 + 210225097.

It is an arithmetic number, because the mean of its divisors is an integer number (210225097).

Almost surely, 2^420450193 is an apocalyptic number.

It is an amenable number.

420450193 is a deficient number, since it is larger than the sum of its proper divisors (1).

420450193 is an equidigital number, since it uses as much as digits as its factorization.

420450193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 420450193 is about 20504.8821747407. The cubic root of 420450193 is about 749.1547176141.

The spelling of 420450193 in words is "four hundred twenty million, four hundred fifty thousand, one hundred ninety-three".