40442420442 has 8 divisors (see below), whose sum is σ = 80884840896. Its totient is φ = 13480806812.

The previous prime is 40442420387. The next prime is 40442420483. The reversal of 40442420442 is 24402424404.

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

40442420442 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3370201698 + ... + 3370201709.

It is an arithmetic number, because the mean of its divisors is an integer number (10110605112).

Almost surely, 2^40442420442 is an apocalyptic number.

40442420442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40442420442 is a wasteful number, since it uses less digits than its factorization.

40442420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6740403412.

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 40442420442 its reverse (24402424404), we get a palindrome (64844844846).

The spelling of 40442420442 in words is "forty billion, four hundred forty-two million, four hundred twenty thousand, four hundred forty-two".