40044351542 has 16 divisors (see below), whose sum is σ = 64920568272. Its totient is φ = 18415283040.

The previous prime is 40044351539. The next prime is 40044351593. The reversal of 40044351542 is 24515344004.

It is a junction number, because it is equal to n+sod(n) for n = 40044351499 and 40044351508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2772884 + ... + 2787287.

It is an arithmetic number, because the mean of its divisors is an integer number (4057535517).

Almost surely, 2^40044351542 is an apocalyptic number.

40044351542 is a deficient number, since it is larger than the sum of its proper divisors (24876216730).

40044351542 is a wasteful number, since it uses less digits than its factorization.

40044351542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5560463.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 40044351542 its reverse (24515344004), we get a palindrome (64559695546).

The spelling of 40044351542 in words is "forty billion, forty-four million, three hundred fifty-one thousand, five hundred forty-two".