40542782 has 8 divisors (see below), whose sum is σ = 69501936. Its totient is φ = 17375472.

The previous prime is 40542781. The next prime is 40542869. The reversal of 40542782 is 28724504.

40542782 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (40542781) 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, 1447943 + ... + 1447970.

It is an arithmetic number, because the mean of its divisors is an integer number (8687742).

Almost surely, 2^40542782 is an apocalyptic number.

40542782 is a deficient number, since it is larger than the sum of its proper divisors (28959154).

40542782 is a wasteful number, since it uses less digits than its factorization.

40542782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895922.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 40542782 is about 6367.3214148494. The cubic root of 40542782 is about 343.5351516071.

The spelling of 40542782 in words is "forty million, five hundred forty-two thousand, seven hundred eighty-two".