42042020220420 has 96 divisors (see below), whose sum is σ = 128422296567936. Its totient is φ = 10191764044800.

The previous prime is 42042020220373. The next prime is 42042020220451. The reversal of 42042020220420 is 2402202024024.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28029930 + ... + 29491710.

It is an arithmetic number, because the mean of its divisors is an integer number (1337732255916).

Almost surely, 2^{42042020220420} is an apocalyptic number.

It is an amenable number.

42042020220420 is an abundant number, since it is smaller than the sum of its proper divisors (86380276347516).

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

42042020220420 is a wasteful number, since it uses less digits than its factorization.

42042020220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505381 (or 1505379 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 42042020220420 its reverse (2402202024024), we get a palindrome (44444222244444).

The spelling of 42042020220420 in words is "forty-two trillion, forty-two billion, twenty million, two hundred twenty thousand, four hundred twenty".