4002420044 has 24 divisors (see below), whose sum is σ = 8263062528. Its totient is φ = 1659989520.

The previous prime is 4002420017. The next prime is 4002420047. The reversal of 4002420044 is 4400242004.

It is a super-2 number, since 2×4002420044² = 32038732417225923872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4002419998 and 4002420025.

It is not an unprimeable number, because it can be changed into a prime (4002420047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2304674 + ... + 2306409.

It is an arithmetic number, because the mean of its divisors is an integer number (344294272).

Almost surely, 2^4002420044 is an apocalyptic number.

It is an amenable number.

4002420044 is an abundant number, since it is smaller than the sum of its proper divisors (4260642484).

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

4002420044 is a wasteful number, since it uses less digits than its factorization.

4002420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611125 (or 4611123 counting only the distinct ones).

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

The square root of 4002420044 is about 63264.6824381503. The cubic root of 4002420044 is about 1587.7211191281.

Adding to 4002420044 its reverse (4400242004), we get a palindrome (8402662048).

The spelling of 4002420044 in words is "four billion, two million, four hundred twenty thousand, forty-four".