1022281344 has 128 divisors (see below), whose sum is σ = 3448252800. Its totient is φ = 292073472.

The previous prime is 1022281343. The next prime is 1022281361. The reversal of 1022281344 is 4431822201.

1022281344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is not an unprimeable number, because it can be changed into a prime (1022281343) 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, 3064 + ... + 45320.

It is an arithmetic number, because the mean of its divisors is an integer number (26939475).

Almost surely, 2^1022281344 is an apocalyptic number.

1022281344 is a gapful number since it is divisible by the number (14) 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 1022281344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1724126400).

1022281344 is an abundant number, since it is smaller than the sum of its proper divisors (2425971456).

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

1022281344 is an equidigital number, since it uses as much as digits as its factorization.

1022281344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42287 (or 42269 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 1022281344 is about 31973.1347227637. The cubic root of 1022281344 is about 1007.3726254790.

The spelling of 1022281344 in words is "one billion, twenty-two million, two hundred eighty-one thousand, three hundred forty-four".