40042472054 has 16 divisors (see below), whose sum is σ = 64691207280. Its totient is φ = 18479079840.

The previous prime is 40042472047. The next prime is 40042472059. The reversal of 40042472054 is 45027424004.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40042472054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40042472059) 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 7 ways as a sum of consecutive naturals, for example, 165632 + ... + 327900.

It is an arithmetic number, because the mean of its divisors is an integer number (4043200455).

Almost surely, 2^40042472054 is an apocalyptic number.

40042472054 is a deficient number, since it is larger than the sum of its proper divisors (24648735226).

40042472054 is a wasteful number, since it uses less digits than its factorization.

40042472054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171775.

The product of its (nonzero) digits is 35840, while the sum is 32.

Adding to 40042472054 its reverse (45027424004), we get a palindrome (85069896058).

The spelling of 40042472054 in words is "forty billion, forty-two million, four hundred seventy-two thousand, fifty-four".