1084721112 has 64 divisors (see below), whose sum is σ = 3031257600. Its totient is φ = 359396640.

The previous prime is 1084721087. The next prime is 1084721117. The reversal of 1084721112 is 2111274801.

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 (1084721117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21037 + ... + 51107.

It is an arithmetic number, because the mean of its divisors is an integer number (47363400).

Almost surely, 2^1084721112 is an apocalyptic number.

1084721112 is a gapful number since it is divisible by the number (12) 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 1084721112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515628800).

1084721112 is an abundant number, since it is smaller than the sum of its proper divisors (1946536488).

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

1084721112 is a wasteful number, since it uses less digits than its factorization.

1084721112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30253 (or 30243 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 1084721112 is about 32935.1045542594. The cubic root of 1084721112 is about 1027.4783926406.

Adding to 1084721112 its reverse (2111274801), we get a palindrome (3195995913).

The spelling of 1084721112 in words is "one billion, eighty-four million, seven hundred twenty-one thousand, one hundred twelve".