1420438193 has 2 divisors, whose sum is σ = 1420438194. Its totient is φ = 1420438192.

The previous prime is 1420438169. The next prime is 1420438207. The reversal of 1420438193 is 3918340241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081620544 + 338817649 = 32888^2 + 18407^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420438193 - 2⁸ = 1420437937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420438093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710219096 + 710219097.

It is an arithmetic number, because the mean of its divisors is an integer number (710219097).

Almost surely, 2^1420438193 is an apocalyptic number.

It is an amenable number.

1420438193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420438193 is an equidigital number, since it uses as much as digits as its factorization.

1420438193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1420438193 is about 37688.7011317716. The cubic root of 1420438193 is about 1124.1064689042.

The spelling of 1420438193 in words is "one billion, four hundred twenty million, four hundred thirty-eight thousand, one hundred ninety-three".