2004042220 has 24 divisors (see below), whose sum is σ = 4241631744. Its totient is φ = 795303936.

The previous prime is 2004042197. The next prime is 2004042241. The reversal of 2004042220 is 222404002.

It is a junction number, because it is equal to n+sod(n) for n = 2004042194 and 2004042203.

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, 391957 + ... + 397036.

It is an arithmetic number, because the mean of its divisors is an integer number (176734656).

Almost surely, 2^2004042220 is an apocalyptic number.

2004042220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2004042220 is an abundant number, since it is smaller than the sum of its proper divisors (2237589524).

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

2004042220 is a wasteful number, since it uses less digits than its factorization.

2004042220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789129 (or 789127 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2004042220 is about 44766.5301313381. The cubic root of 2004042220 is about 1260.7692916990.

Adding to 2004042220 its reverse (222404002), we get a palindrome (2226446222).

The spelling of 2004042220 in words is "two billion, four million, forty-two thousand, two hundred twenty".