1021134444 has 96 divisors (see below), whose sum is σ = 2777193216. Its totient is φ = 288583680.

The previous prime is 1021134421. The next prime is 1021134463. The reversal of 1021134444 is 4444311201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251559 + ... + 255585.

It is an arithmetic number, because the mean of its divisors is an integer number (28929096).

Almost surely, 2^1021134444 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 1021134444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388596608).

1021134444 is an abundant number, since it is smaller than the sum of its proper divisors (1756058772).

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

1021134444 is a wasteful number, since it uses less digits than its factorization.

1021134444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175 (or 4173 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1021134444 is about 31955.1943195469. The cubic root of 1021134444 is about 1006.9957598846.

Adding to 1021134444 its reverse (4444311201), we get a palindrome (5465445645).

The spelling of 1021134444 in words is "one billion, twenty-one million, one hundred thirty-four thousand, four hundred forty-four".