1121444028 has 126 divisors (see below), whose sum is σ = 3080170184. Its totient is φ = 357070032.

The previous prime is 1121444021. The next prime is 1121444041. The reversal of 1121444028 is 8204441211.

1121444028 is a `hidden beast` number, since 1 + 1 + 214 + 440 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1121443992 and 1121444010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121444021) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 1542201 + ... + 1542927.

Almost surely, 2^1121444028 is an apocalyptic number.

1121444028 is a gapful number since it is divisible by the number (18) 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 1121444028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1540085092).

1121444028 is an abundant number, since it is smaller than the sum of its proper divisors (1958726156).

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

1121444028 is an equidigital number, since it uses as much as digits as its factorization.

1121444028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 1121444028 is about 33487.9684065785. The cubic root of 1121444028 is about 1038.9449445795.

Adding to 1121444028 its reverse (8204441211), we get a palindrome (9325885239).

The spelling of 1121444028 in words is "one billion, one hundred twenty-one million, four hundred forty-four thousand, twenty-eight".