1120447944 has 512 divisors, whose sum is σ = 4230144000. Its totient is φ = 266112000.

The previous prime is 1120447943. The next prime is 1120447961. The reversal of 1120447944 is 4497440211.

1120447944 is a `hidden beast` number, since 1 + 120 + 447 + 94 + 4 = 666.

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 = 1120447899 and 1120447908.

It is not an unprimeable number, because it can be changed into a prime (1120447943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11093494 + ... + 11093594.

It is an arithmetic number, because the mean of its divisors is an integer number (8262000).

Almost surely, 2^1120447944 is an apocalyptic number.

1120447944 is a gapful number since it is divisible by the number (14) 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 1120447944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2115072000).

1120447944 is an abundant number, since it is smaller than the sum of its proper divisors (3109696056).

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

1120447944 is a wasteful number, since it uses less digits than its factorization.

1120447944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1120447944 is about 33473.0928358884. The cubic root of 1120447944 is about 1038.6372511178.

The spelling of 1120447944 in words is "one billion, one hundred twenty million, four hundred forty-seven thousand, nine hundred forty-four".