1428899585 has 16 divisors (see below), whose sum is σ = 1771783680. Its totient is φ = 1105125120.

The previous prime is 1428899581. The next prime is 1428899603. The reversal of 1428899585 is 5859988241.

It is not a de Polignac number, because 1428899585 - 2² = 1428899581 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1428899581) 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 in 15 ways as a sum of consecutive naturals, for example, 169961 + ... + 178169.

It is an arithmetic number, because the mean of its divisors is an integer number (110736480).

Almost surely, 2^1428899585 is an apocalyptic number.

It is an amenable number.

1428899585 is a deficient number, since it is larger than the sum of its proper divisors (342884095).

1428899585 is a wasteful number, since it uses less digits than its factorization.

1428899585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9368.

The product of its digits is 8294400, while the sum is 59.

The square root of 1428899585 is about 37800.7881531589. The cubic root of 1428899585 is about 1126.3341104538.

The spelling of 1428899585 in words is "one billion, four hundred twenty-eight million, eight hundred ninety-nine thousand, five hundred eighty-five".