40340355652 has 12 divisors (see below), whose sum is σ = 70606948860. Its totient is φ = 20166941696.

The previous prime is 40340355617. The next prime is 40340355667. The reversal of 40340355652 is 25655304304.

It can be written as a sum of positive squares in 2 ways, for example, as 24480983296 + 15859372356 = 156464^2 + 125934^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 780877 + ... + 830932.

It is an arithmetic number, because the mean of its divisors is an integer number (5883912405).

Almost surely, 2^40340355652 is an apocalyptic number.

It is an amenable number.

40340355652 is a deficient number, since it is larger than the sum of its proper divisors (30266593208).

40340355652 is a wasteful number, since it uses less digits than its factorization.

40340355652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618070 (or 1618068 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 40340355652 its reverse (25655304304), we get a palindrome (65995659956).

The spelling of 40340355652 in words is "forty billion, three hundred forty million, three hundred fifty-five thousand, six hundred fifty-two".