4042122023420 has 48 divisors (see below), whose sum is σ = 9230166079680. Its totient is φ = 1477985757696.

The previous prime is 4042122023417. The next prime is 4042122023431. The reversal of 4042122023420 is 243202212404.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 4042122023420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75442265 + ... + 75495824.

It is an arithmetic number, because the mean of its divisors is an integer number (192295126660).

Almost surely, 2^{4042122023420} is an apocalyptic number.

It is an amenable number.

4042122023420 is an abundant number, since it is smaller than the sum of its proper divisors (5188044056260).

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

4042122023420 is a wasteful number, since it uses less digits than its factorization.

4042122023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150938214 (or 150938212 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 4042122023420 its reverse (243202212404), we get a palindrome (4285324235824).

The spelling of 4042122023420 in words is "four trillion, forty-two billion, one hundred twenty-two million, twenty-three thousand, four hundred twenty".