40020404042 has 8 divisors (see below), whose sum is σ = 60332268000. Its totient is φ = 19909648044.

The previous prime is 40020404033. The next prime is 40020404051. The reversal of 40020404042 is 24040402004.

40020404042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40020404033) and next prime (40020404051).

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

It is a super-3 number, since 3×40020404042³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50276492 + ... + 50277287.

It is an arithmetic number, because the mean of its divisors is an integer number (7541533500).

Almost surely, 2^40020404042 is an apocalyptic number.

40020404042 is a deficient number, since it is larger than the sum of its proper divisors (20311863958).

40020404042 is a wasteful number, since it uses less digits than its factorization.

40020404042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100553980.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40020404042 its reverse (24040402004), we get a palindrome (64060806046).

The spelling of 40020404042 in words is "forty billion, twenty million, four hundred four thousand, forty-two".