40442078 has 8 divisors (see below), whose sum is σ = 60690720. Its totient is φ = 20211840.

The previous prime is 40442063. The next prime is 40442111. The reversal of 40442078 is 87024404.

40442078 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 self number, because there is not a number n which added to its sum of digits gives 40442078.

It is a congruent number.

It is an unprimeable number.

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, 4478 + ... + 10046.

It is an arithmetic number, because the mean of its divisors is an integer number (7586340).

Almost surely, 2^40442078 is an apocalyptic number.

40442078 is a deficient number, since it is larger than the sum of its proper divisors (20248642).

40442078 is a wasteful number, since it uses less digits than its factorization.

40442078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9202.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 40442078 is about 6359.4086203042. The cubic root of 40442078 is about 343.2504807357.

The spelling of 40442078 in words is "forty million, four hundred forty-two thousand, seventy-eight".