1715245728 has 48 divisors (see below), whose sum is σ = 5145739200. Its totient is φ = 490070016.

The previous prime is 1715245711. The next prime is 1715245739. The reversal of 1715245728 is 8275425171.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1715245728.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1275553 + ... + 1276896.

It is an arithmetic number, because the mean of its divisors is an integer number (107202900).

Almost surely, 2^1715245728 is an apocalyptic number.

It is an amenable number.

1715245728 is an abundant number, since it is smaller than the sum of its proper divisors (3430493472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1715245728 is a wasteful number, since it uses less digits than its factorization.

1715245728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552469 (or 2552461 counting only the distinct ones).

The product of its digits is 156800, while the sum is 42.

The square root of 1715245728 is about 41415.5252049277. The cubic root of 1715245728 is about 1197.0403285108.

The spelling of 1715245728 in words is "one billion, seven hundred fifteen million, two hundred forty-five thousand, seven hundred twenty-eight".