1120155444 has 36 divisors (see below), whose sum is σ = 2877927780. Its totient is φ = 367263360.

The previous prime is 1120155437. The next prime is 1120155493. The reversal of 1120155444 is 4445510211.

1120155444 is a `hidden beast` number, since 11 + 201 + 5 + 5 + 444 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 183060900 + 937094544 = 13530^2 + 30612^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 252849 + ... + 257240.

Almost surely, 2^1120155444 is an apocalyptic number.

It is an amenable number.

1120155444 is an abundant number, since it is smaller than the sum of its proper divisors (1757772336).

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

1120155444 is a wasteful number, since it uses less digits than its factorization.

1120155444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510160 (or 510155 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 1120155444 is about 33468.7233697373. The cubic root of 1120155444 is about 1038.5468623176.

Adding to 1120155444 its reverse (4445510211), we get a palindrome (5565665655).

The spelling of 1120155444 in words is "one billion, one hundred twenty million, one hundred fifty-five thousand, four hundred forty-four".