33440322020 has 96 divisors (see below), whose sum is σ = 80839213056. Its totient is φ = 11382307200.

The previous prime is 33440321977. The next prime is 33440322053. The reversal of 33440322020 is 2022304433.

It is a super-2 number, since 2×33440322020² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18262505 + ... + 18264335.

It is an arithmetic number, because the mean of its divisors is an integer number (842075136).

Almost surely, 2^33440322020 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 33440322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40419606528).

33440322020 is an abundant number, since it is smaller than the sum of its proper divisors (47398891036).

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

33440322020 is a wasteful number, since it uses less digits than its factorization.

33440322020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2721 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 33440322020 its reverse (2022304433), we get a palindrome (35462626453).

The spelling of 33440322020 in words is "thirty-three billion, four hundred forty million, three hundred twenty-two thousand, twenty".