1088640785 has 16 divisors (see below), whose sum is σ = 1322747712. Its totient is φ = 860059200.

The previous prime is 1088640779. The next prime is 1088640793. The reversal of 1088640785 is 5870468801.

It is a happy number.

It is not a de Polignac number, because 1088640785 - 2¹⁶ = 1088575249 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 134267 + ... + 142143.

It is an arithmetic number, because the mean of its divisors is an integer number (82671732).

Almost surely, 2^1088640785 is an apocalyptic number.

It is an amenable number.

1088640785 is a deficient number, since it is larger than the sum of its proper divisors (234106927).

1088640785 is a wasteful number, since it uses less digits than its factorization.

1088640785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8224.

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 1088640785 is about 32994.5568995857. The cubic root of 1088640785 is about 1028.7145131404.

The spelling of 1088640785 in words is "one billion, eighty-eight million, six hundred forty thousand, seven hundred eighty-five".