1089511368 has 256 divisors, whose sum is σ = 3344302080. Its totient is φ = 291840000.

The previous prime is 1089511271. The next prime is 1089511387. The reversal of 1089511368 is 8631159801.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5704153 + ... + 5704343.

It is an arithmetic number, because the mean of its divisors is an integer number (13063680).

Almost surely, 2^1089511368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089511368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672151040).

1089511368 is an abundant number, since it is smaller than the sum of its proper divisors (2254790712).

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

1089511368 is a wasteful number, since it uses less digits than its factorization.

1089511368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 1089511368 is about 33007.7470906453. The cubic root of 1089511368 is about 1028.9886601177.

The spelling of 1089511368 in words is "one billion, eighty-nine million, five hundred eleven thousand, three hundred sixty-eight".