32440032340 has 24 divisors (see below), whose sum is σ = 68329894752. Its totient is φ = 12936807840.

The previous prime is 32440032323. The next prime is 32440032343. The reversal of 32440032340 is 4323004423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32440032343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2443534 + ... + 2456773.

It is an arithmetic number, because the mean of its divisors is an integer number (2847078948).

Almost surely, 2^32440032340 is an apocalyptic number.

It is an amenable number.

32440032340 is an abundant number, since it is smaller than the sum of its proper divisors (35889862412).

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

32440032340 is a wasteful number, since it uses less digits than its factorization.

32440032340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900647 (or 4900645 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 32440032340 its reverse (4323004423), we get a palindrome (36763036763).

The spelling of 32440032340 in words is "thirty-two billion, four hundred forty million, thirty-two thousand, three hundred forty".