32440504320 has 1248 divisors, whose sum is σ = 144843091200. Its totient is φ = 6738149376.

The previous prime is 32440504309. The next prime is 32440504321. The reversal of 32440504320 is 2340504423.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32440504321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1118638066 + ... + 1118638094.

Almost surely, 2^32440504320 is an apocalyptic number.

32440504320 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 32440504320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72421545600).

32440504320 is an abundant number, since it is smaller than the sum of its proper divisors (112402586880).

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

32440504320 is a wasteful number, since it uses less digits than its factorization.

32440504320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The spelling of 32440504320 in words is "thirty-two billion, four hundred forty million, five hundred four thousand, three hundred twenty".