32313440220 has 96 divisors (see below), whose sum is σ = 96113740800. Its totient is φ = 8088470784.

The previous prime is 32313440213. The next prime is 32313440261. The reversal of 32313440220 is 2204431323.

It is a congruent number.

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, 5764 + ... + 254283.

It is an arithmetic number, because the mean of its divisors is an integer number (1001184800).

Almost surely, 2^32313440220 is an apocalyptic number.

32313440220 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 32313440220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48056870400).

32313440220 is an abundant number, since it is smaller than the sum of its proper divisors (63800300580).

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

32313440220 is a wasteful number, since it uses less digits than its factorization.

32313440220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260187 (or 260185 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 32313440220 its reverse (2204431323), we get a palindrome (34517871543).

The spelling of 32313440220 in words is "thirty-two billion, three hundred thirteen million, four hundred forty thousand, two hundred twenty".