1428616459 has 4 divisors (see below), whose sum is σ = 1428721416. Its totient is φ = 1428511504.

The previous prime is 1428616451. The next prime is 1428616463. The reversal of 1428616459 is 9546168241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1428616459 - 2³ = 1428616451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428616451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28369 + ... + 60514.

It is an arithmetic number, because the mean of its divisors is an integer number (357180354).

Almost surely, 2^1428616459 is an apocalyptic number.

1428616459 is a deficient number, since it is larger than the sum of its proper divisors (104957).

1428616459 is an equidigital number, since it uses as much as digits as its factorization.

1428616459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104956.

The product of its digits is 414720, while the sum is 46.

The square root of 1428616459 is about 37797.0429928057. The cubic root of 1428616459 is about 1126.2597139184.

The spelling of 1428616459 in words is "one billion, four hundred twenty-eight million, six hundred sixteen thousand, four hundred fifty-nine".