40235342505 has 16 divisors (see below), whose sum is σ = 64379747904. Its totient is φ = 21457782720.

The previous prime is 40235342471. The next prime is 40235342509. The reversal of 40235342505 is 50524353204.

It is a happy number.

It is not a de Polignac number, because 40235342505 - 2⁸ = 40235342249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40235342509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316047 + ... + 424683.

It is an arithmetic number, because the mean of its divisors is an integer number (4023734244).

Almost surely, 2^40235342505 is an apocalyptic number.

It is an amenable number.

40235342505 is a deficient number, since it is larger than the sum of its proper divisors (24144405399).

40235342505 is a wasteful number, since it uses less digits than its factorization.

40235342505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133336.

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 40235342505 its reverse (50524353204), we get a palindrome (90759695709).

The spelling of 40235342505 in words is "forty billion, two hundred thirty-five million, three hundred forty-two thousand, five hundred five".