4020202044020 has 24 divisors (see below), whose sum is σ = 8446703353704. Its totient is φ = 1607265758336.

The previous prime is 4020202044017. The next prime is 4020202044139. The reversal of 4020202044020 is 204402020204.

It can be written as a sum of positive squares in 4 ways, for example, as 80858334736 + 3939343709284 = 284356^2 + 1984778^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4020202043983 and 4020202044001.

It is a congruent number.

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, 50900759 + ... + 50979678.

It is an arithmetic number, because the mean of its divisors is an integer number (351945973071).

Almost surely, 2^{4020202044020} is an apocalyptic number.

It is an amenable number.

4020202044020 is an abundant number, since it is smaller than the sum of its proper divisors (4426501309684).

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

4020202044020 is a wasteful number, since it uses less digits than its factorization.

4020202044020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101882419 (or 101882417 counting only the distinct ones).

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

Adding to 4020202044020 its reverse (204402020204), we get a palindrome (4224604064224).

The spelling of 4020202044020 in words is "four trillion, twenty billion, two hundred two million, forty-four thousand, twenty".