32420023040 has 72 divisors (see below), whose sum is σ = 77847211680. Its totient is φ = 12936093696.

The previous prime is 32420023039. The next prime is 32420023073. The reversal of 32420023040 is 4032002423.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492557 + ... + 554483.

Almost surely, 2^32420023040 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 32420023040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38923605840).

32420023040 is an abundant number, since it is smaller than the sum of its proper divisors (45427188640).

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

32420023040 is an equidigital number, since it uses as much as digits as its factorization.

32420023040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62357 (or 62343 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 32420023040 its reverse (4032002423), we get a palindrome (36452025463).

The spelling of 32420023040 in words is "thirty-two billion, four hundred twenty million, twenty-three thousand, forty".