1089107244 has 72 divisors (see below), whose sum is σ = 2958581808. Its totient is φ = 336568320.

The previous prime is 1089107219. The next prime is 1089107249. The reversal of 1089107244 is 4427019801.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1089107199 and 1089107208.

It is not an unprimeable number, because it can be changed into a prime (1089107249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27724 + ... + 54284.

It is an arithmetic number, because the mean of its divisors is an integer number (41091414).

Almost surely, 2^1089107244 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 1089107244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1479290904).

1089107244 is an abundant number, since it is smaller than the sum of its proper divisors (1869474564).

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

1089107244 is a wasteful number, since it uses less digits than its factorization.

1089107244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26655 (or 26650 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1089107244 is about 33001.6248690879. The cubic root of 1089107244 is about 1028.8614194571.

The spelling of 1089107244 in words is "one billion, eighty-nine million, one hundred seven thousand, two hundred forty-four".