32013340040 has 128 divisors (see below), whose sum is σ = 80532144000. Its totient is φ = 11352606720.

The previous prime is 32013339979. The next prime is 32013340097. The reversal of 32013340040 is 4004331023.

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

It is a junction number, because it is equal to n+sod(n) for n = 32013339994 and 32013340021.

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, 19846274 + ... + 19847886.

It is an arithmetic number, because the mean of its divisors is an integer number (629157375).

Almost surely, 2^32013340040 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 32013340040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40266072000).

32013340040 is an abundant number, since it is smaller than the sum of its proper divisors (48518803960).

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

32013340040 is a wasteful number, since it uses less digits than its factorization.

32013340040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 32013340040 its reverse (4004331023), we get a palindrome (36017671063).

The spelling of 32013340040 in words is "thirty-two billion, thirteen million, three hundred forty thousand, forty".