32448821740 has 72 divisors (see below), whose sum is σ = 72537105312. Its totient is φ = 12190648320.

The previous prime is 32448821731. The next prime is 32448821747. The reversal of 32448821740 is 4712884423.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (32448821747) 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, 2901760 + ... + 2912920.

It is an arithmetic number, because the mean of its divisors is an integer number (1007459796).

Almost surely, 2^32448821740 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 32448821740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36268552656).

32448821740 is an abundant number, since it is smaller than the sum of its proper divisors (40088283572).

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

32448821740 is a wasteful number, since it uses less digits than its factorization.

32448821740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11707 (or 11688 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 43.

The spelling of 32448821740 in words is "thirty-two billion, four hundred forty-eight million, eight hundred twenty-one thousand, seven hundred forty".