1112321646 has 80 divisors (see below), whose sum is σ = 2566206720. Its totient is φ = 359931600.

The previous prime is 1112321629. The next prime is 1112321647. The reversal of 1112321646 is 6461232111.

It is a happy number.

1112321646 is a `hidden beast` number, since 1 + 1 + 12 + 3 + 2 + 1 + 646 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112321647) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1057821 + ... + 1058871.

It is an arithmetic number, because the mean of its divisors is an integer number (32077584).

Almost surely, 2^1112321646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112321646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1283103360).

1112321646 is an abundant number, since it is smaller than the sum of its proper divisors (1453885074).

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

1112321646 is a wasteful number, since it uses less digits than its factorization.

1112321646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251 (or 1242 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1112321646 is about 33351.4864136518. The cubic root of 1112321646 is about 1036.1201734699.

Adding to 1112321646 its reverse (6461232111), we get a palindrome (7573553757).

The spelling of 1112321646 in words is "one billion, one hundred twelve million, three hundred twenty-one thousand, six hundred forty-six".