40040323 has 8 divisors (see below), whose sum is σ = 40716000. Its totient is φ = 39370368.

The previous prime is 40040293. The next prime is 40040393. The reversal of 40040323 is 32304004.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40040323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40040297 and 40040306.

It is not an unprimeable number, because it can be changed into a prime (40040393) 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, 14043 + ... + 16651.

It is an arithmetic number, because the mean of its divisors is an integer number (5089500).

Almost surely, 2^40040323 is an apocalyptic number.

40040323 is a deficient number, since it is larger than the sum of its proper divisors (675677).

40040323 is a wasteful number, since it uses less digits than its factorization.

40040323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 40040323 is about 6327.7423304051. The cubic root of 40040323 is about 342.1100696748.

Adding to 40040323 its reverse (32304004), we get a palindrome (72344327).

The spelling of 40040323 in words is "forty million, forty thousand, three hundred twenty-three".