1000020002 has 16 divisors (see below), whose sum is σ = 1590891192. Its totient is φ = 469820160.

The previous prime is 1000020001. The next prime is 1000020011. The reversal of 1000020002 is 2000200001.

It can be written as a sum of positive squares in 4 ways, for example, as 548074921 + 451945081 = 23411^2 + 21259^2 .

1000020002 is a modest number, since divided by 20002 gives 10 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1000020001) 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, 3149 + ... + 44832.

Almost surely, 2^1000020002 is an apocalyptic number.

1000020002 is a deficient number, since it is larger than the sum of its proper divisors (590871190).

1000020002 is a wasteful number, since it uses less digits than its factorization.

1000020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48613.

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 1000020002 is about 31623.0928594911. The cubic root of 1000020002 is about 1000.0066672889.

Adding to 1000020002 its reverse (2000200001), we get a palindrome (3000220003).

The spelling of 1000020002 in words is "one billion, twenty thousand, two".