1020322000 has 80 divisors (see below), whose sum is σ = 2480984064. Its totient is φ = 405840000.

The previous prime is 1020321947. The next prime is 1020322007. The reversal of 1020322000 is 2230201.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020322007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380665 + ... + 383335.

Almost surely, 2^1020322000 is an apocalyptic number.

1020322000 is a gapful number since it is divisible by the number (10) 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 1020322000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240492032).

1020322000 is an abundant number, since it is smaller than the sum of its proper divisors (1460662064).

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

1020322000 is a wasteful number, since it uses less digits than its factorization.

1020322000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885 (or 2869 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1020322000 is about 31942.4795530967. The cubic root of 1020322000 is about 1006.7286240733.

Adding to 1020322000 its reverse (2230201), we get a palindrome (1022552201).

The spelling of 1020322000 in words is "one billion, twenty million, three hundred twenty-two thousand".