1428716349 has 24 divisors (see below), whose sum is σ = 2137674240. Its totient is φ = 918423072.

The previous prime is 1428716339. The next prime is 1428716351. The reversal of 1428716349 is 9436178241.

1428716349 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 7 + 1 + 634 + 9 = 666.

It is not a de Polignac number, because 1428716349 - 2⁷ = 1428716221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428716309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222072 + ... + 228414.

It is an arithmetic number, because the mean of its divisors is an integer number (89069760).

Almost surely, 2^1428716349 is an apocalyptic number.

It is an amenable number.

1428716349 is a deficient number, since it is larger than the sum of its proper divisors (708957891).

1428716349 is a wasteful number, since it uses less digits than its factorization.

1428716349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7241 (or 7238 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 1428716349 is about 37798.3643693745. The cubic root of 1428716349 is about 1126.2859629652.

The spelling of 1428716349 in words is "one billion, four hundred twenty-eight million, seven hundred sixteen thousand, three hundred forty-nine".