40243351005 has 96 divisors (see below), whose sum is σ = 83339867520. Its totient is φ = 17705571840.

The previous prime is 40243350989. The next prime is 40243351009. The reversal of 40243351005 is 50015334204.

It is not a de Polignac number, because 40243351005 - 2⁴ = 40243350989 is a prime.

It is a super-2 number, since 2×40243351005² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40243351005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243351009) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 326667 + ... + 432663.

It is an arithmetic number, because the mean of its divisors is an integer number (868123620).

Almost surely, 2^40243351005 is an apocalyptic number.

40243351005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40243351005 is an abundant number, since it is smaller than the sum of its proper divisors (43096516515).

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

40243351005 is a wasteful number, since it uses less digits than its factorization.

40243351005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106091 (or 106088 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 40243351005 its reverse (50015334204), we get a palindrome (90258685209).

The spelling of 40243351005 in words is "forty billion, two hundred forty-three million, three hundred fifty-one thousand, five".