1121426688 has 72 divisors (see below), whose sum is σ = 3035340000. Its totient is φ = 367458304.

The previous prime is 1121426653. The next prime is 1121426699. The reversal of 1121426688 is 8866241211.

It is a nude number because it is divisible by every one of its digits.

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 7 ways as a sum of consecutive naturals, for example, 32938 + ... + 57686.

It is an arithmetic number, because the mean of its divisors is an integer number (42157500).

Almost surely, 2^1121426688 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 1121426688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517670000).

1121426688 is an abundant number, since it is smaller than the sum of its proper divisors (1913913312).

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

1121426688 is an equidigital number, since it uses as much as digits as its factorization.

1121426688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24827 (or 24813 counting only the distinct ones).

The product of its digits is 36864, while the sum is 39.

The square root of 1121426688 is about 33487.7095066235. The cubic root of 1121426688 is about 1038.9395897579.

Adding to 1121426688 its reverse (8866241211), we get a palindrome (9987667899).

The spelling of 1121426688 in words is "one billion, one hundred twenty-one million, four hundred twenty-six thousand, six hundred eighty-eight".