42020220042 has 32 divisors (see below), whose sum is σ = 93449112960. Its totient is φ = 13996113120.

The previous prime is 42020220029. The next prime is 42020220049. The reversal of 42020220042 is 24002202024.

42020220042 is a `hidden beast` number, since 420 + 2 + 0 + 2 + 200 + 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 = 42020219997 and 42020220024.

It is not an unprimeable number, because it can be changed into a prime (42020220049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223198 + ... + 365865.

It is an arithmetic number, because the mean of its divisors is an integer number (2920284780).

Almost surely, 2^42020220042 is an apocalyptic number.

42020220042 is an abundant number, since it is smaller than the sum of its proper divisors (51428892918).

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

42020220042 is a wasteful number, since it uses less digits than its factorization.

42020220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590395 (or 590389 counting only the distinct ones).

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

Adding to 42020220042 its reverse (24002202024), we get a palindrome (66022422066).

The spelling of 42020220042 in words is "forty-two billion, twenty million, two hundred twenty thousand, forty-two".