4042221420 has 24 divisors (see below), whose sum is σ = 11318220144. Its totient is φ = 1077925696.

The previous prime is 4042221401. The next prime is 4042221431. The reversal of 4042221420 is 241222404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33685119 + ... + 33685238.

It is an arithmetic number, because the mean of its divisors is an integer number (471592506).

Almost surely, 2^4042221420 is an apocalyptic number.

It is an amenable number.

4042221420 is an abundant number, since it is smaller than the sum of its proper divisors (7275998724).

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

4042221420 is a wasteful number, since it uses less digits than its factorization.

4042221420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67370369 (or 67370367 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4042221420 is about 63578.4666376911. The cubic root of 4042221420 is about 1592.9667090423.

Adding to 4042221420 its reverse (241222404), we get a palindrome (4283443824).

The spelling of 4042221420 in words is "four billion, forty-two million, two hundred twenty-one thousand, four hundred twenty".