40606406842 has 16 divisors (see below), whose sum is σ = 61103911680. Its totient is φ = 20238477952.

The previous prime is 40606406779. The next prime is 40606406843. The reversal of 40606406842 is 24860460604.

It is a junction number, because it is equal to n+sod(n) for n = 40606406795 and 40606406804.

It is not an unprimeable number, because it can be changed into a prime (40606406843) 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, 2362893 + ... + 2380015.

It is an arithmetic number, because the mean of its divisors is an integer number (3818994480).

Almost surely, 2^40606406842 is an apocalyptic number.

40606406842 is a deficient number, since it is larger than the sum of its proper divisors (20497504838).

40606406842 is a wasteful number, since it uses less digits than its factorization.

40606406842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20837.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 40606406842 in words is "forty billion, six hundred six million, four hundred six thousand, eight hundred forty-two".