322000020 has 72 divisors (see below), whose sum is σ = 980083104. Its totient is φ = 85572288.

The previous prime is 321999983. The next prime is 322000027. The reversal of 322000020 is 20000223.

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

It is a junction number, because it is equal to n+sod(n) for n = 321999966 and 322000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322000027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52347 + ... + 58173.

Almost surely, 2^322000020 is an apocalyptic number.

322000020 is a gapful number since it is divisible by the number (30) 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 322000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490041552).

322000020 is an abundant number, since it is smaller than the sum of its proper divisors (658083084).

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

322000020 is a wasteful number, since it uses less digits than its factorization.

322000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149 (or 6144 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 322000020 is about 17944.3590022046. The cubic root of 322000020 is about 685.4124143740.

Adding to 322000020 its reverse (20000223), we get a palindrome (342000243).

The spelling of 322000020 in words is "three hundred twenty-two million, twenty", and thus it is an aban number.