4020420024442 has 16 divisors (see below), whose sum is σ = 6350900268960. Its totient is φ = 1903548889872.

The previous prime is 4020420024433. The next prime is 4020420024443. The reversal of 4020420024442 is 2444200240204.

It is a super-2 number, since 2×4020420024442² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4020420024442.

It is not an unprimeable number, because it can be changed into a prime (4020420024443) 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, 23820228 + ... + 23988415.

It is an arithmetic number, because the mean of its divisors is an integer number (396931266810).

Almost surely, 2^{4020420024442} is an apocalyptic number.

4020420024442 is a deficient number, since it is larger than the sum of its proper divisors (2330480244518).

4020420024442 is a wasteful number, since it uses less digits than its factorization.

4020420024442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47810877.

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

Adding to 4020420024442 its reverse (2444200240204), we get a palindrome (6464620264646).

The spelling of 4020420024442 in words is "four trillion, twenty billion, four hundred twenty million, twenty-four thousand, four hundred forty-two".