40942742 has 8 divisors (see below), whose sum is σ = 61631976. Its totient is φ = 20398752.

The previous prime is 40942721. The next prime is 40942747. The reversal of 40942742 is 24724904.

40942742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40942699 and 40942708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40942747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35603 + ... + 36734.

It is an arithmetic number, because the mean of its divisors is an integer number (7703997).

Almost surely, 2^40942742 is an apocalyptic number.

40942742 is a deficient number, since it is larger than the sum of its proper divisors (20689234).

40942742 is a wasteful number, since it uses less digits than its factorization.

40942742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72622.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 40942742 is about 6398.6515766996. The cubic root of 40942742 is about 344.6611305391.

The spelling of 40942742 in words is "forty million, nine hundred forty-two thousand, seven hundred forty-two".