40489321332 has 24 divisors (see below), whose sum is σ = 96672179296. Its totient is φ = 13182569568.

The previous prime is 40489321307. The next prime is 40489321333. The reversal of 40489321332 is 23312398404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40489321333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39233323 + ... + 39234354.

Almost surely, 2^40489321332 is an apocalyptic number.

It is an amenable number.

40489321332 is an abundant number, since it is smaller than the sum of its proper divisors (56182857964).

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

40489321332 is a wasteful number, since it uses less digits than its factorization.

40489321332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78467727 (or 78467725 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 40489321332 in words is "forty billion, four hundred eighty-nine million, three hundred twenty-one thousand, three hundred thirty-two".