1089407768 has 32 divisors (see below), whose sum is σ = 2056838160. Its totient is φ = 540933120.

The previous prime is 1089407749. The next prime is 1089407777. The reversal of 1089407768 is 8677049801.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 843203 + ... + 844493.

Almost surely, 2^1089407768 is an apocalyptic number.

It is an amenable number.

1089407768 is a deficient number, since it is larger than the sum of its proper divisors (967430392).

1089407768 is a wasteful number, since it uses less digits than its factorization.

1089407768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 1089407768 is about 33006.1777247836. The cubic root of 1089407768 is about 1028.9560440883.

The spelling of 1089407768 in words is "one billion, eighty-nine million, four hundred seven thousand, seven hundred sixty-eight".