1120448772 has 144 divisors (see below), whose sum is σ = 3160335360. Its totient is φ = 333077184.

The previous prime is 1120448741. The next prime is 1120448783. The reversal of 1120448772 is 2778440211.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1053513 + ... + 1054575.

Almost surely, 2^1120448772 is an apocalyptic number.

1120448772 is a gapful number since it is divisible by the number (12) 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 1120448772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580167680).

1120448772 is an abundant number, since it is smaller than the sum of its proper divisors (2039886588).

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

1120448772 is a wasteful number, since it uses less digits than its factorization.

1120448772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 1120448772 is about 33473.1052040291. The cubic root of 1120448772 is about 1038.6375069653.

Adding to 1120448772 its reverse (2778440211), we get a palindrome (3898888983).

The spelling of 1120448772 in words is "one billion, one hundred twenty million, four hundred forty-eight thousand, seven hundred seventy-two".