40056042029 has 4 divisors (see below), whose sum is σ = 40059698784. Its totient is φ = 40052385276.

The previous prime is 40056042001. The next prime is 40056042043. The reversal of 40056042029 is 92024065004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40056042029 - 2³² = 35761074733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40056041986 and 40056042004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40056042329) 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 3 ways as a sum of consecutive naturals, for example, 1811897 + ... + 1833870.

It is an arithmetic number, because the mean of its divisors is an integer number (10014924696).

Almost surely, 2^40056042029 is an apocalyptic number.

It is an amenable number.

40056042029 is a deficient number, since it is larger than the sum of its proper divisors (3656755).

40056042029 is a wasteful number, since it uses less digits than its factorization.

40056042029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3656754.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 40056042029 in words is "forty billion, fifty-six million, forty-two thousand, twenty-nine".