40234443205 has 16 divisors (see below), whose sum is σ = 52767940608. Its totient is φ = 29207304000.

The previous prime is 40234443181. The next prime is 40234443209. The reversal of 40234443205 is 50234443204.

It is not a de Polignac number, because 40234443205 - 2¹¹ = 40234441157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40234443209) 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 15 ways as a sum of consecutive naturals, for example, 646341 + ... + 705850.

It is an arithmetic number, because the mean of its divisors is an integer number (3297996288).

Almost surely, 2^40234443205 is an apocalyptic number.

It is an amenable number.

40234443205 is a deficient number, since it is larger than the sum of its proper divisors (12533497403).

40234443205 is a wasteful number, since it uses less digits than its factorization.

40234443205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352748.

The product of its (nonzero) digits is 46080, while the sum is 31.

Adding to 40234443205 its reverse (50234443204), we get a palindrome (90468886409).

Subtracting 40234443205 from its reverse (50234443204), we obtain a palindrome (9999999999).

The spelling of 40234443205 in words is "forty billion, two hundred thirty-four million, four hundred forty-three thousand, two hundred five".