1078591996 has 48 divisors (see below), whose sum is σ = 2062180512. Its totient is φ = 491673600.

The previous prime is 1078591967. The next prime is 1078591999. The reversal of 1078591996 is 6991958701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078591999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275976 + ... + 279856.

It is an arithmetic number, because the mean of its divisors is an integer number (42962094).

Almost surely, 2^1078591996 is an apocalyptic number.

It is an amenable number.

1078591996 is a deficient number, since it is larger than the sum of its proper divisors (983588516).

1078591996 is a wasteful number, since it uses less digits than its factorization.

1078591996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030 (or 4028 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 55.

The square root of 1078591996 is about 32841.9243650551. The cubic root of 1078591996 is about 1025.5395124462.

The spelling of 1078591996 in words is "one billion, seventy-eight million, five hundred ninety-one thousand, nine hundred ninety-six".