1120445000 has 80 divisors (see below), whose sum is σ = 2739623040. Its totient is φ = 428648000.

The previous prime is 1120444981. The next prime is 1120445033. The reversal of 1120445000 is 5440211.

It is a self number, because there is not a number n which added to its sum of digits gives 1120445000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 110129 + ... + 119871.

It is an arithmetic number, because the mean of its divisors is an integer number (34245288).

Almost surely, 2^1120445000 is an apocalyptic number.

1120445000 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 1120445000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1369811520).

1120445000 is an abundant number, since it is smaller than the sum of its proper divisors (1619178040).

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

1120445000 is an equidigital number, since it uses as much as digits as its factorization.

1120445000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9792 (or 9773 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1120445000 is about 33473.0488602398. The cubic root of 1120445000 is about 1038.6363414368.

Adding to 1120445000 its reverse (5440211), we get a palindrome (1125885211).

The spelling of 1120445000 in words is "one billion, one hundred twenty million, four hundred forty-five thousand".