40033323405 has 24 divisors (see below), whose sum is σ = 69506985600. Its totient is φ = 21315446880.

The previous prime is 40033323401. The next prime is 40033323467. The reversal of 40033323405 is 50432333004.

It is a happy number.

It is not a de Polignac number, because 40033323405 - 2² = 40033323401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40033323401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 715641 + ... + 769550.

It is an arithmetic number, because the mean of its divisors is an integer number (2896124400).

Almost surely, 2^40033323405 is an apocalyptic number.

40033323405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40033323405 is a deficient number, since it is larger than the sum of its proper divisors (29473662195).

40033323405 is a wasteful number, since it uses less digits than its factorization.

40033323405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485801 (or 1485798 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 40033323405 its reverse (50432333004), we get a palindrome (90465656409).

The spelling of 40033323405 in words is "forty billion, thirty-three million, three hundred twenty-three thousand, four hundred five".