1120981288 has 64 divisors (see below), whose sum is σ = 2461219200. Its totient is φ = 468737280.

The previous prime is 1120981223. The next prime is 1120981289. The reversal of 1120981288 is 8821890211.

It is a super-2 number, since 2×1120981288² = 2513198096092277888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1120981288.

It is not an unprimeable number, because it can be changed into a prime (1120981289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407598 + ... + 410338.

It is an arithmetic number, because the mean of its divisors is an integer number (38456550).

Almost surely, 2^1120981288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120981288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230609600).

1120981288 is an abundant number, since it is smaller than the sum of its proper divisors (1340237912).

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

1120981288 is a wasteful number, since it uses less digits than its factorization.

1120981288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 40.

The square root of 1120981288 is about 33481.0586451504. The cubic root of 1120981288 is about 1038.8020254169.

The spelling of 1120981288 in words is "one billion, one hundred twenty million, nine hundred eighty-one thousand, two hundred eighty-eight".