1423843349 has 2 divisors, whose sum is σ = 1423843350. Its totient is φ = 1423843348.

The previous prime is 1423843249. The next prime is 1423843387. The reversal of 1423843349 is 9433483241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1367668324 + 56175025 = 36982^2 + 7495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423843349 - 2¹² = 1423839253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423843249) 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, 711921674 + 711921675.

It is an arithmetic number, because the mean of its divisors is an integer number (711921675).

Almost surely, 2^1423843349 is an apocalyptic number.

It is an amenable number.

1423843349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423843349 is an equidigital number, since it uses as much as digits as its factorization.

1423843349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 41.

The square root of 1423843349 is about 37733.8488495409. The cubic root of 1423843349 is about 1125.0040095989.

The spelling of 1423843349 in words is "one billion, four hundred twenty-three million, eight hundred forty-three thousand, three hundred forty-nine".