40242042442 has 8 divisors (see below), whose sum is σ = 68986358496. Its totient is φ = 17246589612.

The previous prime is 40242042377. The next prime is 40242042461. The reversal of 40242042442 is 24424024204.

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 40242042442.

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, 1437215788 + ... + 1437215815.

It is an arithmetic number, because the mean of its divisors is an integer number (8623294812).

Almost surely, 2^40242042442 is an apocalyptic number.

40242042442 is a deficient number, since it is larger than the sum of its proper divisors (28744316054).

40242042442 is a wasteful number, since it uses less digits than its factorization.

40242042442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874431612.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40242042442 its reverse (24424024204), we get a palindrome (64666066646).

The spelling of 40242042442 in words is "forty billion, two hundred forty-two million, forty-two thousand, four hundred forty-two".