40004242202020 has 24 divisors (see below), whose sum is σ = 84009462244344. Its totient is φ = 16001591429376.

The previous prime is 40004242202017. The next prime is 40004242202021. The reversal of 40004242202020 is 2020224240004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 512896604224 + 39491345597796 = 716168^2 + 6284214^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40004242201982 and 40004242202000.

It is not an unprimeable number, because it can be changed into a prime (40004242202021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3443289 + ... + 9584608.

It is an arithmetic number, because the mean of its divisors is an integer number (3500394260181).

Almost surely, 2^{40004242202020} is an apocalyptic number.

It is an amenable number.

40004242202020 is an abundant number, since it is smaller than the sum of its proper divisors (44005220042324).

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

40004242202020 is a wasteful number, since it uses less digits than its factorization.

40004242202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13181439 (or 13181437 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40004242202020 its reverse (2020224240004), we get a palindrome (42024466442024).

The spelling of 40004242202020 in words is "forty trillion, four billion, two hundred forty-two million, two hundred two thousand, twenty".