202040240042 has 8 divisors (see below), whose sum is σ = 303109172832. Its totient is φ = 101003849100.

The previous prime is 202040240029. The next prime is 202040240161. The reversal of 202040240042 is 240042040202.

202040240042 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 junction number, because it is equal to n+sod(n) for n = 202040239996 and 202040240023.

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, 8119934 + ... + 8144777.

It is an arithmetic number, because the mean of its divisors is an integer number (37888646604).

Almost surely, 2^202040240042 is an apocalyptic number.

202040240042 is a deficient number, since it is larger than the sum of its proper divisors (101068932790).

202040240042 is a wasteful number, since it uses less digits than its factorization.

202040240042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16270924.

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

Adding to 202040240042 its reverse (240042040202), we get a palindrome (442082280244).

The spelling of 202040240042 in words is "two hundred two billion, forty million, two hundred forty thousand, forty-two".