8002142020 has 12 divisors (see below), whose sum is σ = 16804498284. Its totient is φ = 3200856800.

The previous prime is 8002142017. The next prime is 8002142021. The reversal of 8002142020 is 202412008.

It can be written as a sum of positive squares in 2 ways, for example, as 2911034116 + 5091107904 = 53954^2 + 71352^2 .

It is not an unprimeable number, because it can be changed into a prime (8002142021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200053531 + ... + 200053570.

It is an arithmetic number, because the mean of its divisors is an integer number (1400374857).

Almost surely, 2^8002142020 is an apocalyptic number.

It is an amenable number.

8002142020 is an abundant number, since it is smaller than the sum of its proper divisors (8802356264).

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

8002142020 is a wasteful number, since it uses less digits than its factorization.

8002142020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400107110 (or 400107108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 8002142020 is about 89454.6925543876. The cubic root of 8002142020 is about 2000.1784857376.

Adding to 8002142020 its reverse (202412008), we get a palindrome (8204554028).

The spelling of 8002142020 in words is "eight billion, two million, one hundred forty-two thousand, twenty".