1120538556 has 48 divisors (see below), whose sum is σ = 2907072000. Its totient is φ = 373259376.

The previous prime is 1120538533. The next prime is 1120538593. The reversal of 1120538556 is 6558350211.

It is a happy number.

1120538556 is a `hidden beast` number, since 112 + 0 + 538 + 5 + 5 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1120538556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224221 + ... + 229163.

It is an arithmetic number, because the mean of its divisors is an integer number (60564000).

Almost surely, 2^1120538556 is an apocalyptic number.

It is an amenable number.

1120538556 is an abundant number, since it is smaller than the sum of its proper divisors (1786533444).

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

1120538556 is a wasteful number, since it uses less digits than its factorization.

1120538556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055 (or 7047 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 1120538556 is about 33474.4463135688. The cubic root of 1120538556 is about 1038.6652489860.

Adding to 1120538556 its reverse (6558350211), we get a palindrome (7678888767).

The spelling of 1120538556 in words is "one billion, one hundred twenty million, five hundred thirty-eight thousand, five hundred fifty-six".