1089694080 has 256 divisors, whose sum is σ = 4063680000. Its totient is φ = 275208192.

The previous prime is 1089694031. The next prime is 1089694091. The reversal of 1089694080 is 804969801.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326661 + ... + 329979.

It is an arithmetic number, because the mean of its divisors is an integer number (15873750).

Almost surely, 2^1089694080 is an apocalyptic number.

1089694080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089694080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031840000).

1089694080 is an abundant number, since it is smaller than the sum of its proper divisors (2973985920).

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

1089694080 is a wasteful number, since it uses less digits than its factorization.

1089694080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366 (or 3348 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 1089694080 is about 33010.5146885049. The cubic root of 1089694080 is about 1029.0461776657.

It can be divided in two parts, 10896 and 94080, that added together give a 4-th power (104976 = 18⁴).

The spelling of 1089694080 in words is "one billion, eighty-nine million, six hundred ninety-four thousand, eighty".