40345423544 has 32 divisors (see below), whose sum is σ = 76236422400. Its totient is φ = 20016247680.

The previous prime is 40345423541. The next prime is 40345423579. The reversal of 40345423544 is 44532454304.

It is a junction number, because it is equal to n+sod(n) for n = 40345423498 and 40345423507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40345423541) 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 7 ways as a sum of consecutive naturals, for example, 573362 + ... + 639870.

It is an arithmetic number, because the mean of its divisors is an integer number (2382388200).

Almost surely, 2^40345423544 is an apocalyptic number.

It is an amenable number.

40345423544 is a deficient number, since it is larger than the sum of its proper divisors (35890998856).

40345423544 is a wasteful number, since it uses less digits than its factorization.

40345423544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67103 (or 67099 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 38.

Adding to 40345423544 its reverse (44532454304), we get a palindrome (84877877848).

The spelling of 40345423544 in words is "forty billion, three hundred forty-five million, four hundred twenty-three thousand, five hundred forty-four".