1089065250 has 384 divisors, whose sum is σ = 3777725952. Its totient is φ = 228614400.

The previous prime is 1089065239. The next prime is 1089065251. The reversal of 1089065250 is 525609801.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1089065251) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5528152 + ... + 5528348.

It is an arithmetic number, because the mean of its divisors is an integer number (9837828).

Almost surely, 2^1089065250 is an apocalyptic number.

1089065250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089065250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1888862976).

1089065250 is an abundant number, since it is smaller than the sum of its proper divisors (2688660702).

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

1089065250 is a wasteful number, since it uses less digits than its factorization.

1089065250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1089065250 is about 33000.9886215550. The cubic root of 1089065250 is about 1028.8481956104.

The spelling of 1089065250 in words is "one billion, eighty-nine million, sixty-five thousand, two hundred fifty".