1001000322 has 96 divisors (see below), whose sum is σ = 2651019840. Its totient is φ = 278994240.

The previous prime is 1001000321. The next prime is 1001000359. The reversal of 1001000322 is 2230001001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1001000321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103873 + ... + 113099.

It is an arithmetic number, because the mean of its divisors is an integer number (27614790).

Almost surely, 2^1001000322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001000322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1325509920).

1001000322 is an abundant number, since it is smaller than the sum of its proper divisors (1650019518).

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

1001000322 is a wasteful number, since it uses less digits than its factorization.

1001000322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293 (or 9280 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1001000322 is about 31638.5891278356. The cubic root of 1001000322 is about 1000.3333295457. Note that the first 4 decimals are identical.

Adding to 1001000322 its reverse (2230001001), we get a palindrome (3231001323).

The spelling of 1001000322 in words is "one billion, one million, three hundred twenty-two", and thus it is an aban number.