1428715073 has 16 divisors (see below), whose sum is σ = 1532597760. Its totient is φ = 1328880000.

The previous prime is 1428715063. The next prime is 1428715091. The reversal of 1428715073 is 3705178241.

It is a cyclic number.

It is not a de Polignac number, because 1428715073 - 2⁶ = 1428715009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428715063) 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, 200573 + ... + 207573.

It is an arithmetic number, because the mean of its divisors is an integer number (95787360).

Almost surely, 2^1428715073 is an apocalyptic number.

It is an amenable number.

1428715073 is a deficient number, since it is larger than the sum of its proper divisors (103882687).

1428715073 is a wasteful number, since it uses less digits than its factorization.

1428715073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 1428715073 is about 37798.3474903335. The cubic root of 1428715073 is about 1126.2856276662.

The spelling of 1428715073 in words is "one billion, four hundred twenty-eight million, seven hundred fifteen thousand, seventy-three".