4020420044 has 24 divisors (see below), whose sum is σ = 7190883840. Its totient is φ = 1965946896.

The previous prime is 4020420011. The next prime is 4020420097. The reversal of 4020420044 is 4400240204.

It is a junction number, because it is equal to n+sod(n) for n = 4020419998 and 4020420025.

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, 264647 + ... + 279425.

It is an arithmetic number, because the mean of its divisors is an integer number (299620160).

Almost surely, 2^4020420044 is an apocalyptic number.

It is an amenable number.

4020420044 is a deficient number, since it is larger than the sum of its proper divisors (3170463796).

4020420044 is a wasteful number, since it uses less digits than its factorization.

4020420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16277 (or 16275 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4020420044 is about 63406.7823186132. The cubic root of 4020420044 is about 1590.0977016292.

Adding to 4020420044 its reverse (4400240204), we get a palindrome (8420660248).

The spelling of 4020420044 in words is "four billion, twenty million, four hundred twenty thousand, forty-four".