40334432321 has 8 divisors (see below), whose sum is σ = 42585573600. Its totient is φ = 38096118720.

The previous prime is 40334432309. The next prime is 40334432353. The reversal of 40334432321 is 12323443304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-40334432321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40334432221) 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, 3200456 + ... + 3213033.

It is an arithmetic number, because the mean of its divisors is an integer number (5323196700).

Almost surely, 2^40334432321 is an apocalyptic number.

It is an amenable number.

40334432321 is a deficient number, since it is larger than the sum of its proper divisors (2251141279).

40334432321 is a wasteful number, since it uses less digits than its factorization.

40334432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6413839.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 40334432321 its reverse (12323443304), we get a palindrome (52657875625).

The spelling of 40334432321 in words is "forty billion, three hundred thirty-four million, four hundred thirty-two thousand, three hundred twenty-one".