4020000420042 has 16 divisors (see below), whose sum is σ = 8933334266880. Its totient is φ = 1340000139996.

The previous prime is 4020000420041. The next prime is 4020000420061. The reversal of 4020000420042 is 2400240000204.

4020000420042 is a `hidden beast` number, since 4 + 0 + 200 + 0 + 0 + 420 + 0 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4020000419997 and 4020000420024.

It is not an unprimeable number, because it can be changed into a prime (4020000420041) 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, 37222226058 + ... + 37222226165.

It is an arithmetic number, because the mean of its divisors is an integer number (558333391680).

Almost surely, 2^{4020000420042} is an apocalyptic number.

4020000420042 is an abundant number, since it is smaller than the sum of its proper divisors (4913333846838).

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

4020000420042 is a wasteful number, since it uses less digits than its factorization.

4020000420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74444452234 (or 74444452228 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 4020000420042 its reverse (2400240000204), we get a palindrome (6420240420246).

The spelling of 4020000420042 in words is "four trillion, twenty billion, four hundred twenty thousand, forty-two".