1328984615 has 24 divisors (see below), whose sum is σ = 1856909520. Its totient is φ = 910441728.

The previous prime is 1328984561. The next prime is 1328984623. The reversal of 1328984615 is 5164898231.

It is a happy number.

It is not a de Polignac number, because 1328984615 - 2¹⁶ = 1328919079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1328984615.

It is a congruent number.

It is an unprimeable number.

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, 362984 + ... + 366626.

It is an arithmetic number, because the mean of its divisors is an integer number (77371230).

Almost surely, 2^1328984615 is an apocalyptic number.

1328984615 is a deficient number, since it is larger than the sum of its proper divisors (527924905).

1328984615 is a wasteful number, since it uses less digits than its factorization.

1328984615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5151 (or 5144 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 1328984615 is about 36455.2412555451. The cubic root of 1328984615 is about 1099.4445170576. Note that the first 3 decimals are identical.

The spelling of 1328984615 in words is "one billion, three hundred twenty-eight million, nine hundred eighty-four thousand, six hundred fifteen".