1089783960 has 32 divisors (see below), whose sum is σ = 3269352240. Its totient is φ = 290609024.

The previous prime is 1089783911. The next prime is 1089783967. The reversal of 1089783960 is 693879801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089783967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4540647 + ... + 4540886.

Almost surely, 2^1089783960 is an apocalyptic number.

1089783960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089783960 is an abundant number, since it is smaller than the sum of its proper divisors (2179568280).

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

1089783960 is a wasteful number, since it uses less digits than its factorization.

1089783960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081547 (or 9081543 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 1089783960 is about 33011.8760448418. The cubic root of 1089783960 is about 1029.0744694372.

The spelling of 1089783960 in words is "one billion, eighty-nine million, seven hundred eighty-three thousand, nine hundred sixty".